22101122020021 has 8 divisors (see below), whose sum is σ = 24110643209184. Its totient is φ = 20091655543920.

The previous prime is 22101122019943. The next prime is 22101122020049. The reversal of 22101122020021 is 12002022110122.

It is a happy number.

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 22101122020021 - 2²³ = 22101113631413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22101122019977 and 22101122020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101122020121) 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, 12831366 + ... + 14451511.

It is an arithmetic number, because the mean of its divisors is an integer number (3013830401148).

Almost surely, 2^{22101122020021} is an apocalyptic number.

It is an amenable number.

22101122020021 is a deficient number, since it is larger than the sum of its proper divisors (2009521189163).

22101122020021 is a wasteful number, since it uses less digits than its factorization.

22101122020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27356531.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22101122020021 its reverse (12002022110122), we get a palindrome (34103144130143).

The spelling of 22101122020021 in words is "twenty-two trillion, one hundred one billion, one hundred twenty-two million, twenty thousand, twenty-one".