22012011201021 has 32 divisors (see below), whose sum is σ = 29978861322240. Its totient is φ = 14361364440384.

The previous prime is 22012011200951. The next prime is 22012011201067. The reversal of 22012011201021 is 12010211021022.

It is not a de Polignac number, because 22012011201021 - 2²⁶ = 22011944092157 is a prime.

It is a super-2 number, since 2×22012011201021² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012011209021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104722596 + ... + 104932578.

It is an arithmetic number, because the mean of its divisors is an integer number (936839416320).

Almost surely, 2^{22012011201021} is an apocalyptic number.

It is an amenable number.

22012011201021 is a deficient number, since it is larger than the sum of its proper divisors (7966850121219).

22012011201021 is a wasteful number, since it uses less digits than its factorization.

22012011201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211705.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22012011201021 its reverse (12010211021022), we get a palindrome (34022222222043).

The spelling of 22012011201021 in words is "twenty-two trillion, twelve billion, eleven million, two hundred one thousand, twenty-one".