1200211212112 has 80 divisors (see below), whose sum is σ = 2711138029632. Its totient is φ = 508660520960.

The previous prime is 1200211212091. The next prime is 1200211212133. The reversal of 1200211212112 is 2112121120021.

It is an interprime number because it is at equal distance from previous prime (1200211212091) and next prime (1200211212133).

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 1554343 + ... + 2194630.

Almost surely, 2^{1200211212112} is an apocalyptic number.

It is an amenable number.

1200211212112 is an abundant number, since it is smaller than the sum of its proper divisors (1510926817520).

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

1200211212112 is a wasteful number, since it uses less digits than its factorization.

1200211212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3749116 (or 3749110 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1200211212112 its reverse (2112121120021), we get a palindrome (3312332332133).

The spelling of 1200211212112 in words is "one trillion, two hundred billion, two hundred eleven million, two hundred twelve thousand, one hundred twelve".