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1220210110012 = 223122963376781
BaseRepresentation
bin10001110000011010001…
…100001010111000111100
311022122120112121001222111
4101300122030022320330
5124442442242010022
62332320133223404
7154104641542405
oct21603214127074
94278515531874
101220210110012
11430540883953
12178599a91b64
138b0b067959a
14430b66a49ac
1521b1910b477
hex11c1a30ae3c

1220210110012 has 48 divisors (see below), whose sum is σ = 2214551960320. Its totient is φ = 587666534400.

The previous prime is 1220210110001. The next prime is 1220210110033. The reversal of 1220210110012 is 2100110120221.

It is a junction number, because it is equal to n+sod(n) for n = 1220210109974 and 1220210110001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179942062 + ... + 179948842.

Almost surely, 21220210110012 is an apocalyptic number.

It is an amenable number.

1220210110012 is a deficient number, since it is larger than the sum of its proper divisors (994341850308).

1220210110012 is a wasteful number, since it uses less digits than its factorization.

1220210110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13382 (or 13380 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1220210110012 its reverse (2100110120221), we get a palindrome (3320320230233).

The spelling of 1220210110012 in words is "one trillion, two hundred twenty billion, two hundred ten million, one hundred ten thousand, twelve".

Divisors: 1 2 4 31 62 124 229 458 916 6337 6781 7099 12674 13562 14198 25348 27124 28396 196447 210211 392894 420422 785788 840844 1451173 1552849 2902346 3105698 5804692 6211396 42971197 44986363 48138319 85942394 89972726 96276638 171884788 179945452 192553276 1332107107 2664214214 5328428428 9840404113 19680808226 39361616452 305052527503 610105055006 1220210110012