22102112021 has 8 divisors (see below), whose sum is σ = 24163030944. Its totient is φ = 20049799120.

The previous prime is 22102112003. The next prime is 22102112057. The reversal of 22102112021 is 12021120122.

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 22102112021 - 2⁶ = 22102111957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22102111987 and 22102112005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102112321) 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, 2146130 + ... + 2156403.

It is an arithmetic number, because the mean of its divisors is an integer number (3020378868).

Almost surely, 2^22102112021 is an apocalyptic number.

It is an amenable number.

22102112021 is a deficient number, since it is larger than the sum of its proper divisors (2060918923).

22102112021 is a wasteful number, since it uses less digits than its factorization.

22102112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303011.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22102112021 its reverse (12021120122), we get a palindrome (34123232143).

The spelling of 22102112021 in words is "twenty-two billion, one hundred two million, one hundred twelve thousand, twenty-one".