22101102221021 has 8 divisors (see below), whose sum is σ = 22247735664000. Its totient is φ = 21954472311600.

The previous prime is 22101102220997. The next prime is 22101102221053. The reversal of 22101102221021 is 12012220110122.

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

It is a cyclic number.

It is not a de Polignac number, because 22101102221021 - 2¹⁰ = 22101102219997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101102211021) 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, 12319760 + ... + 13999238.

It is an arithmetic number, because the mean of its divisors is an integer number (2780966958000).

Almost surely, 2^{22101102221021} is an apocalyptic number.

It is an amenable number.

22101102221021 is a deficient number, since it is larger than the sum of its proper divisors (146633442979).

22101102221021 is a wasteful number, since it uses less digits than its factorization.

22101102221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766779.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22101102221021 its reverse (12012220110122), we get a palindrome (34113322331143).

The spelling of 22101102221021 in words is "twenty-two trillion, one hundred one billion, one hundred two million, two hundred twenty-one thousand, twenty-one".