22002102000021 has 32 divisors (see below), whose sum is σ = 34467585086592. Its totient is φ = 12307884687360.

The previous prime is 22002101999993. The next prime is 22002102000061. The reversal of 22002102000021 is 12000020120022.

It is not a de Polignac number, because 22002102000021 - 2¹⁰ = 22002101998997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22002101999970 and 22002102000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002102000061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3342421 + ... + 7428053.

It is an arithmetic number, because the mean of its divisors is an integer number (1077112033956).

Almost surely, 2^{22002102000021} is an apocalyptic number.

It is an amenable number.

22002102000021 is a deficient number, since it is larger than the sum of its proper divisors (12465483086571).

22002102000021 is a wasteful number, since it uses less digits than its factorization.

22002102000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098213.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22002102000021 its reverse (12000020120022), we get a palindrome (34002122120043).

The spelling of 22002102000021 in words is "twenty-two trillion, two billion, one hundred two million, twenty-one", and thus it is an aban number.