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2212220212212 = 2231953443413251
BaseRepresentation
bin100000001100010010100…
…110011001001111110100
321211111010102121122011210
4200030102212121033310
5242221111333242322
64412140244401420
7315553610354643
oct40142246311764
97744112548153
102212220212212
1178321970131a
122b88b00a6270
131307c452b23a
147910191335a
153c8291c070c
hex203129993f4

2212220212212 has 96 divisors (see below), whose sum is σ = 5548552773120. Its totient is φ = 683865936000.

The previous prime is 2212220212207. The next prime is 2212220212327. The reversal of 2212220212212 is 2122120222122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5146587 + ... + 5559837.

It is an arithmetic number, because the mean of its divisors is an integer number (57797424720).

Almost surely, 22212220212212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212220212212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2774276386560).

2212220212212 is an abundant number, since it is smaller than the sum of its proper divisors (3336332560908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2212220212212 is a wasteful number, since it uses less digits than its factorization.

2212220212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413773 (or 413771 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2212220212212 its reverse (2122120222122), we get a palindrome (4334340434334).

The spelling of 2212220212212 in words is "two trillion, two hundred twelve billion, two hundred twenty million, two hundred twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 19 38 53 57 76 106 114 159 212 228 318 443 636 886 1007 1329 1772 2014 2658 3021 4028 5316 6042 8417 12084 16834 23479 25251 33668 46958 50502 70437 93916 101004 140874 281748 413251 446101 826502 892202 1239753 1338303 1653004 1784404 2479506 2676606 4959012 5353212 7851769 15703538 21902303 23555307 31407076 43804606 47110614 65706909 87609212 94221228 131413818 183070193 262827636 366140386 416143757 549210579 732280772 832287514 1098421158 1248431271 1664575028 2196842316 2496862542 3478333667 4993725084 6956667334 9702720229 10435001001 13913334668 19405440458 20870002002 29108160687 38810880916 41740004004 58216321374 116432642748 184351684351 368703368702 553055053053 737406737404 1106110106106 2212220212212