7122556012 has 96 divisors (see below), whose sum is σ = 14850791424. Its totient is φ = 2946566400.

The previous prime is 7122556009. The next prime is 7122556013. The reversal of 7122556012 is 2106552217.

It is a super-4 number, since 4×7122556012⁴ (a number of 41 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (7122556013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16525437 + ... + 16525867.

It is an arithmetic number, because the mean of its divisors is an integer number (154695744).

Almost surely, 2^7122556012 is an apocalyptic number.

It is an amenable number.

7122556012 is an abundant number, since it is smaller than the sum of its proper divisors (7728235412).

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

7122556012 is a wasteful number, since it uses less digits than its factorization.

7122556012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 7122556012 is about 84395.2369035125. The cubic root of 7122556012 is about 1924.0305243233.

The spelling of 7122556012 in words is "seven billion, one hundred twenty-two million, five hundred fifty-six thousand, twelve".