612122252128 has 24 divisors (see below), whose sum is σ = 1205142185520. Its totient is φ = 306054395520.

The previous prime is 612122252089. The next prime is 612122252129. The reversal of 612122252128 is 821252221216.

It is a junction number, because it is equal to n+sod(n) for n = 612122252093 and 612122252102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612122252129) 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, 1475413 + ... + 1844203.

It is an arithmetic number, because the mean of its divisors is an integer number (50214257730).

Almost surely, 2^612122252128 is an apocalyptic number.

It is an amenable number.

612122252128 is a deficient number, since it is larger than the sum of its proper divisors (593019933392).

612122252128 is a wasteful number, since it uses less digits than its factorization.

612122252128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420670 (or 420662 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The spelling of 612122252128 in words is "six hundred twelve billion, one hundred twenty-two million, two hundred fifty-two thousand, one hundred twenty-eight".