22101100102021 has 4 divisors (see below), whose sum is σ = 22101334221600. Its totient is φ = 22100865982444.

The previous prime is 22101100102019. The next prime is 22101100102033. The reversal of 22101100102021 is 12020100110122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22101100102021 - 2¹ = 22101100102019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22101100101992 and 22101100102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101100100021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116918131 + ... + 117107008.

It is an arithmetic number, because the mean of its divisors is an integer number (5525333555400).

Almost surely, 2^{22101100102021} is an apocalyptic number.

It is an amenable number.

22101100102021 is a deficient number, since it is larger than the sum of its proper divisors (234119579).

22101100102021 is an equidigital number, since it uses as much as digits as its factorization.

22101100102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234119578.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22101100102021 its reverse (12020100110122), we get a palindrome (34121200212143).

The spelling of 22101100102021 in words is "twenty-two trillion, one hundred one billion, one hundred million, one hundred two thousand, twenty-one".