22012122112021 has 8 divisors (see below), whose sum is σ = 22167559008000. Its totient is φ = 21857213016240.

The previous prime is 22012122111979. The next prime is 22012122112027. The reversal of 22012122112021 is 12021122121022.

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 22012122112021 - 2¹⁵ = 22012122079253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22012122112021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012122112027) 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, 131866345 + ... + 132033166.

It is an arithmetic number, because the mean of its divisors is an integer number (2770944876000).

Almost surely, 2^{22012122112021} is an apocalyptic number.

It is an amenable number.

22012122112021 is a deficient number, since it is larger than the sum of its proper divisors (155436895979).

22012122112021 is a wasteful number, since it uses less digits than its factorization.

22012122112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263900099.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22012122112021 its reverse (12021122121022), we get a palindrome (34033244233043).

Subtracting from 22012122112021 its reverse (12021122121022), we obtain a palindrome (9990999990999).

The spelling of 22012122112021 in words is "twenty-two trillion, twelve billion, one hundred twenty-two million, one hundred twelve thousand, twenty-one".