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1200211102212 = 223392272549713
BaseRepresentation
bin10001011101110010001…
…010000000101000000100
311020201221202221012202220
4101131302022000220010
5124131013020232322
62315211441132340
7152466231020253
oct21356212005004
94221852835686
101200211102212
11423008972331
1217473832a0b0
138924425b465
144213a59a79a
15213484d955c
hex11772280a04

1200211102212 has 24 divisors (see below), whose sum is σ = 2800565062176. Its totient is φ = 400060011648.

The previous prime is 1200211102183. The next prime is 1200211102253. The reversal of 1200211102212 is 2122011120021.

It is a super-2 number, since 2×12002111022122 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200211102191 and 1200211102200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804133 + ... + 1745580.

It is an arithmetic number, because the mean of its divisors is an integer number (116690210924).

Almost surely, 21200211102212 is an apocalyptic number.

1200211102212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200211102212 is an abundant number, since it is smaller than the sum of its proper divisors (1600353959964).

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

1200211102212 is a wasteful number, since it uses less digits than its factorization.

1200211102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588947 (or 2588945 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1200211102212 its reverse (2122011120021), we get a palindrome (3322222222233).

The spelling of 1200211102212 in words is "one trillion, two hundred billion, two hundred eleven million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 39227 78454 117681 156908 235362 470724 2549713 5099426 7649139 10198852 15298278 30596556 100017591851 200035183702 300052775553 400070367404 600105551106 1200211102212