22200011100021 has 16 divisors (see below), whose sum is σ = 29617532195328. Its totient is φ = 14791251030000.

The previous prime is 22200011099993. The next prime is 22200011100119. The reversal of 22200011100021 is 12000111000222.

It is not a de Polignac number, because 22200011100021 - 2⁵ = 22200011099989 is a prime.

It is a super-2 number, since 2×22200011100021² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200011100821) 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, 38368150 + ... + 38942456.

It is an arithmetic number, because the mean of its divisors is an integer number (1851095762208).

Almost surely, 2^{22200011100021} is an apocalyptic number.

It is an amenable number.

22200011100021 is a deficient number, since it is larger than the sum of its proper divisors (7417521095307).

22200011100021 is a wasteful number, since it uses less digits than its factorization.

22200011100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581912.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22200011100021 its reverse (12000111000222), we get a palindrome (34200122100243).

The spelling of 22200011100021 in words is "twenty-two trillion, two hundred billion, eleven million, one hundred thousand, twenty-one".