1256075122152 has 16 divisors (see below), whose sum is σ = 3140187805440. Its totient is φ = 418691707376.

The previous prime is 1256075122117. The next prime is 1256075122157. The reversal of 1256075122152 is 2512215706521.

It is a super-2 number, since 2×1256075122152² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1256075122152.

It is not an unprimeable number, because it can be changed into a prime (1256075122157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26168231688 + ... + 26168231735.

It is an arithmetic number, because the mean of its divisors is an integer number (196261737840).

Almost surely, 2^{1256075122152} is an apocalyptic number.

1256075122152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1256075122152 is an abundant number, since it is smaller than the sum of its proper divisors (1884112683288).

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

1256075122152 is a wasteful number, since it uses less digits than its factorization.

1256075122152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52336463432 (or 52336463428 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 39.

The spelling of 1256075122152 in words is "one trillion, two hundred fifty-six billion, seventy-five million, one hundred twenty-two thousand, one hundred fifty-two".