22100211120021 has 8 divisors (see below), whose sum is σ = 29467930086240. Its totient is φ = 14732983116912.

The previous prime is 22100211120017. The next prime is 22100211120041. The reversal of 22100211120021 is 12002111200122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22100211120021 - 2² = 22100211120017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100211120041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122635731 + ... + 122815808.

It is an arithmetic number, because the mean of its divisors is an integer number (3683491260780).

Almost surely, 2^{22100211120021} is an apocalyptic number.

It is an amenable number.

22100211120021 is a deficient number, since it is larger than the sum of its proper divisors (7367718966219).

22100211120021 is a wasteful number, since it uses less digits than its factorization.

22100211120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245481555.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22100211120021 its reverse (12002111200122), we get a palindrome (34102322320143).

The spelling of 22100211120021 in words is "twenty-two trillion, one hundred billion, two hundred eleven million, one hundred twenty thousand, twenty-one".