1256106107200 has 84 divisors (see below), whose sum is σ = 3532349848672. Its totient is φ = 430664947200.

The previous prime is 1256106107189. The next prime is 1256106107203. The reversal of 1256106107200 is 27016016521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256106107203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56064966 + ... + 56087365.

Almost surely, 2^{1256106107200} is an apocalyptic number.

1256106107200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1256106107200 is an abundant number, since it is smaller than the sum of its proper divisors (2276243741472).

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

1256106107200 is a wasteful number, since it uses less digits than its factorization.

1256106107200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112152360 (or 112152345 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 1256106107200 in words is "one trillion, two hundred fifty-six billion, one hundred six million, one hundred seven thousand, two hundred".