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12212302202321 = 132113900770999
BaseRepresentation
bin1011000110110110010111…
…1011110100010111010001
31121020111002100010102021212
42301231211323310113101
53100041243330433241
641550130523025505
72400211142654414
oct261554573642721
947214070112255
1012212302202321
113989232245761
1214529ab36b295
136a77cc662900
143031158a5b7b
15162a0b40bbeb
hexb1b65ef45d1

12212302202321 has 24 divisors (see below), whose sum is σ = 13342667616000. Its totient is φ = 11171736366336.

The previous prime is 12212302202293. The next prime is 12212302202327. The reversal of 12212302202321 is 12320220321221.

It is a happy number.

It is not a de Polignac number, because 12212302202321 - 242 = 7814255691217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212302202327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171971180 + ... + 172042178.

It is an arithmetic number, because the mean of its divisors is an integer number (555944484000).

Almost surely, 212212302202321 is an apocalyptic number.

It is an amenable number.

12212302202321 is a deficient number, since it is larger than the sum of its proper divisors (1130365413679).

12212302202321 is a wasteful number, since it uses less digits than its factorization.

12212302202321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80145 (or 80132 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12212302202321 its reverse (12320220321221), we get a palindrome (24532522523542).

The spelling of 12212302202321 in words is "twelve trillion, two hundred twelve billion, three hundred two million, two hundred two thousand, three hundred twenty-one".

Divisors: 1 13 113 169 1469 9007 19097 70999 117091 922987 1017791 1522183 8022887 11998831 13231283 104297531 172006679 639487993 1355867903 8313343909 72262143209 108073470817 939407861717 12212302202321