10022000021 has 16 divisors (see below), whose sum is σ = 11822526720. Its totient is φ = 8392519680.

The previous prime is 10022000017. The next prime is 10022000029. The reversal of 10022000021 is 12000022001.

It is a cyclic number.

It is not a de Polignac number, because 10022000021 - 2² = 10022000017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021999972 and 10022000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022000029) 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, 561356 + ... + 578933.

It is an arithmetic number, because the mean of its divisors is an integer number (738907920).

Almost surely, 2^10022000021 is an apocalyptic number.

10022000021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10022000021 is a deficient number, since it is larger than the sum of its proper divisors (1800526699).

10022000021 is a wasteful number, since it uses less digits than its factorization.

10022000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140364.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 10022000021 its reverse (12000022001), we get a palindrome (22022022022).

The spelling of 10022000021 in words is "ten billion, twenty-two million, twenty-one", and thus it is an aban number and an uban number.