22100022000021 has 32 divisors (see below), whose sum is σ = 34414634078208. Its totient is φ = 12352022326080.

The previous prime is 22100021999999. The next prime is 22100022000029. The reversal of 22100022000021 is 12000022000122.

It is not a de Polignac number, because 22100022000021 - 2¹⁰ = 22100021998997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22100021999970 and 22100022000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100022000029) 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, 5575810 + ... + 8676963.

It is an arithmetic number, because the mean of its divisors is an integer number (1075457314944).

Almost surely, 2^{22100022000021} is an apocalyptic number.

22100022000021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22100022000021 is a deficient number, since it is larger than the sum of its proper divisors (12314612078187).

22100022000021 is a wasteful number, since it uses less digits than its factorization.

22100022000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14254401.

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

Adding to 22100022000021 its reverse (12000022000122), we get a palindrome (34100044000143).

The spelling of 22100022000021 in words is "twenty-two trillion, one hundred billion, twenty-two million, twenty-one", and thus it is an aban number.