1200012211112 has 64 divisors (see below), whose sum is σ = 2643787944000. Its totient is φ = 503424599040.

The previous prime is 1200012211091. The next prime is 1200012211127. The reversal of 1200012211112 is 2111122100021.

It is a super-2 number, since 2×1200012211112² (a number of 25 digits) contains 22 as substring.

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, 7733264 + ... + 7886912.

It is an arithmetic number, because the mean of its divisors is an integer number (41309186625).

Almost surely, 2^{1200012211112} is an apocalyptic number.

It is an amenable number.

1200012211112 is an abundant number, since it is smaller than the sum of its proper divisors (1443775732888).

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

1200012211112 is a wasteful number, since it uses less digits than its factorization.

1200012211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160506 (or 160502 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1200012211112 its reverse (2111122100021), we get a palindrome (3311134311133).

The spelling of 1200012211112 in words is "one trillion, two hundred billion, twelve million, two hundred eleven thousand, one hundred twelve".