2222021000021 has 8 divisors (see below), whose sum is σ = 2244061373400. Its totient is φ = 2199981414400.

The previous prime is 2222021000009. The next prime is 2222021000071. The reversal of 2222021000021 is 1200001202222.

2222021000021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1488617167921 + 733403832100 = 1220089^2 + 856390^2 .

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 2222021000021 - 2¹⁰ = 2222020998997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222021000071) 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, 6645125 + ... + 6971493.

It is an arithmetic number, because the mean of its divisors is an integer number (280507671675).

Almost surely, 2^{2222021000021} is an apocalyptic number.

It is an amenable number.

2222021000021 is a deficient number, since it is larger than the sum of its proper divisors (22040373379).

2222021000021 is a wasteful number, since it uses less digits than its factorization.

2222021000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393879.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2222021000021 its reverse (1200001202222), we get a palindrome (3422022202243).

The spelling of 2222021000021 in words is "two trillion, two hundred twenty-two billion, twenty-one million, twenty-one", and thus it is an aban number.