22121122020201 has 16 divisors (see below), whose sum is σ = 33096508197120. Its totient is φ = 14601400671600.

The previous prime is 22121122020187. The next prime is 22121122020203. The reversal of 22121122020201 is 10202022112122.

It is a happy number.

22121122020201 is a `hidden beast` number, since 2 + 212 + 11 + 220 + 20 + 201 = 666.

It is not a de Polignac number, because 22121122020201 - 2²⁶ = 22121054911337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22121122020203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4055941905 + ... + 4055947358.

It is an arithmetic number, because the mean of its divisors is an integer number (2068531762320).

Almost surely, 2^{22121122020201} is an apocalyptic number.

It is an amenable number.

22121122020201 is a deficient number, since it is larger than the sum of its proper divisors (10975386176919).

22121122020201 is a wasteful number, since it uses less digits than its factorization.

22121122020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8111889373 (or 8111889367 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22121122020201 its reverse (10202022112122), we get a palindrome (32323144132323).

The spelling of 22121122020201 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty-two million, twenty thousand, two hundred one".