3122000021 has 8 divisors (see below), whose sum is σ = 3568783680. Its totient is φ = 2675412288.

The previous prime is 3122000009. The next prime is 3122000027. The reversal of 3122000021 is 1200002213.

It is a happy number.

3122000021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3122000021 - 2¹⁸ = 3121737877 is a prime.

It is a super-2 number, since 2×3122000021² = 19493768262248000882, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3121999966 and 3122000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3122000027) 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, 13076 + ... + 80093.

It is an arithmetic number, because the mean of its divisors is an integer number (446097960).

Almost surely, 2^3122000021 is an apocalyptic number.

It is an amenable number.

3122000021 is a deficient number, since it is larger than the sum of its proper divisors (446783659).

3122000021 is an equidigital number, since it uses as much as digits as its factorization.

3122000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97963.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 3122000021 is about 55874.8603667159. The cubic root of 3122000021 is about 1461.5408797557.

Adding to 3122000021 its reverse (1200002213), we get a palindrome (4322002234).

The spelling of 3122000021 in words is "three billion, one hundred twenty-two million, twenty-one", and thus it is an aban number.