922130021 has 16 divisors (see below), whose sum is σ = 1002543360. Its totient is φ = 845173440.

The previous prime is 922130017. The next prime is 922130029. The reversal of 922130021 is 120031229.

It is a cyclic number.

It is not a de Polignac number, because 922130021 - 2² = 922130017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 922129975 and 922130002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (922130029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123620 + ... + 130866.

It is an arithmetic number, because the mean of its divisors is an integer number (62658960).

Almost surely, 2^922130021 is an apocalyptic number.

It is an amenable number.

922130021 is a deficient number, since it is larger than the sum of its proper divisors (80413339).

922130021 is a wasteful number, since it uses less digits than its factorization.

922130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7484.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 922130021 is about 30366.5938326971. The cubic root of 922130021 is about 973.3388399508.

The spelling of 922130021 in words is "nine hundred twenty-two million, one hundred thirty thousand, twenty-one".