111021211012 has 12 divisors (see below), whose sum is σ = 195479065936. Its totient is φ = 55170049320.

The previous prime is 111021211003. The next prime is 111021211039. The reversal of 111021211012 is 210112120111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111021210983 and 111021211001.

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, 85138314 + ... + 85139617.

Almost surely, 2^111021211012 is an apocalyptic number.

It is an amenable number.

111021211012 is a deficient number, since it is larger than the sum of its proper divisors (84457854924).

111021211012 is a wasteful number, since it uses less digits than its factorization.

111021211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170278098 (or 170278096 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111021211012 its reverse (210112120111), we get a palindrome (321133331123).

Subtracting 111021211012 from its reverse (210112120111), we obtain a palindrome (99090909099).

The spelling of 111021211012 in words is "one hundred eleven billion, twenty-one million, two hundred eleven thousand, twelve".