22112022100021 has 8 divisors (see below), whose sum is σ = 25271029209920. Its totient is φ = 18953051692608.

The previous prime is 22112022099919. The next prime is 22112022100027. The reversal of 22112022100021 is 12000122021122.

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 22112022100021 - 2³³ = 22103432165429 is a prime.

It is a super-2 number, since 2×22112022100021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22112022099968 and 22112022100004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112022100027) 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, 7872276 + ... + 10305181.

It is an arithmetic number, because the mean of its divisors is an integer number (3158878651240).

Almost surely, 2^{22112022100021} is an apocalyptic number.

It is an amenable number.

22112022100021 is a deficient number, since it is larger than the sum of its proper divisors (3159007109899).

22112022100021 is a wasteful number, since it uses less digits than its factorization.

22112022100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18351243.

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

Adding to 22112022100021 its reverse (12000122021122), we get a palindrome (34112144121143).

The spelling of 22112022100021 in words is "twenty-two trillion, one hundred twelve billion, twenty-two million, one hundred thousand, twenty-one".