121200211012 has 12 divisors (see below), whose sum is σ = 212103554320. Its totient is φ = 60599195496.

The previous prime is 121200211003. The next prime is 121200211049. The reversal of 121200211012 is 210112002121.

It is a super-2 number, since 2×121200211012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121200210983 and 121200211001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137083 + ... + 511069.

Almost surely, 2^121200211012 is an apocalyptic number.

It is an amenable number.

121200211012 is a deficient number, since it is larger than the sum of its proper divisors (90903343308).

121200211012 is a wasteful number, since it uses less digits than its factorization.

121200211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455010 (or 455008 counting only the distinct ones).

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

Adding to 121200211012 its reverse (210112002121), we get a palindrome (331312213133).

The spelling of 121200211012 in words is "one hundred twenty-one billion, two hundred million, two hundred eleven thousand, twelve".