22100010002021 has 32 divisors (see below), whose sum is σ = 26711151452160. Its totient is φ = 17861874221376.

The previous prime is 22100010002003. The next prime is 22100010002033. The reversal of 22100010002021 is 12020001000122.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22100010002021 is a prime.

It is a super-3 number, since 3×22100010002021³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22100010001993 and 22100010002011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100010002041) 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, 30308300 + ... + 31028906.

It is an arithmetic number, because the mean of its divisors is an integer number (834723482880).

Almost surely, 2^{22100010002021} is an apocalyptic number.

It is an amenable number.

22100010002021 is a deficient number, since it is larger than the sum of its proper divisors (4611141450139).

22100010002021 is a wasteful number, since it uses less digits than its factorization.

22100010002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721713.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22100010002021 its reverse (12020001000122), we get a palindrome (34120011002143).

The spelling of 22100010002021 in words is "twenty-two trillion, one hundred billion, ten million, two thousand, twenty-one".