22122101110021 has 8 divisors (see below), whose sum is σ = 24332649156288. Its totient is φ = 20111001007900.

The previous prime is 22122101110013. The next prime is 22122101110073. The reversal of 22122101110021 is 12001110122122.

It is not a de Polignac number, because 22122101110021 - 2³ = 22122101110013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22122101109977 and 22122101110004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122101110001) 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, 8310329665 + ... + 8310332326.

It is an arithmetic number, because the mean of its divisors is an integer number (3041581144536).

Almost surely, 2^{22122101110021} is an apocalyptic number.

It is an amenable number.

22122101110021 is a deficient number, since it is larger than the sum of its proper divisors (2210548046267).

22122101110021 is an equidigital number, since it uses as much as digits as its factorization.

22122101110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16620662024 (or 16620662002 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22122101110021 its reverse (12001110122122), we get a palindrome (34123211232143).

The spelling of 22122101110021 in words is "twenty-two trillion, one hundred twenty-two billion, one hundred one million, one hundred ten thousand, twenty-one".