22021121102201 has 24 divisors (see below), whose sum is σ = 24093293132160. Its totient is φ = 20115869170176.

The previous prime is 22021121102179. The next prime is 22021121102231. The reversal of 22021121102201 is 10220112112022.

It is a de Polignac number, because none of the positive numbers 2^k-22021121102201 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22021121102201.

It is not an unprimeable number, because it can be changed into a prime (22021121102231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210155060 + ... + 210259818.

It is an arithmetic number, because the mean of its divisors is an integer number (1003887213840).

Almost surely, 2^{22021121102201} is an apocalyptic number.

It is an amenable number.

22021121102201 is a deficient number, since it is larger than the sum of its proper divisors (2072172029959).

22021121102201 is a wasteful number, since it uses less digits than its factorization.

22021121102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117705 (or 117692 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22021121102201 its reverse (10220112112022), we get a palindrome (32241233214223).

The spelling of 22021121102201 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-one million, one hundred two thousand, two hundred one".