2251220626612 has 24 divisors (see below), whose sum is σ = 3990309926400. Its totient is φ = 1111137826656.

The previous prime is 2251220626609. The next prime is 2251220626619. The reversal of 2251220626612 is 2166260221522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251220626619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855189 + ... + 2287747.

It is an arithmetic number, because the mean of its divisors is an integer number (166262913600).

Almost surely, 2^{2251220626612} is an apocalyptic number.

It is an amenable number.

2251220626612 is a deficient number, since it is larger than the sum of its proper divisors (1739089299788).

2251220626612 is a wasteful number, since it uses less digits than its factorization.

2251220626612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437615 (or 1437613 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 2251220626612 in words is "two trillion, two hundred fifty-one billion, two hundred twenty million, six hundred twenty-six thousand, six hundred twelve".