22100220002021 has 16 divisors (see below), whose sum is σ = 25817772968064. Its totient is φ = 18525090153024.

The previous prime is 22100220001999. The next prime is 22100220002023. The reversal of 22100220002021 is 12020002200122.

It is not a de Polignac number, because 22100220002021 - 2³⁴ = 22083040132837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22100220001987 and 22100220002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100220002023) 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, 96904550 + ... + 97132343.

It is an arithmetic number, because the mean of its divisors is an integer number (1613610810504).

Almost surely, 2^{22100220002021} is an apocalyptic number.

It is an amenable number.

22100220002021 is a deficient number, since it is larger than the sum of its proper divisors (3717552966043).

22100220002021 is a wasteful number, since it uses less digits than its factorization.

22100220002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194037260.

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

Adding to 22100220002021 its reverse (12020002200122), we get a palindrome (34120222202143).

The spelling of 22100220002021 in words is "twenty-two trillion, one hundred billion, two hundred twenty million, two thousand, twenty-one".