22101022102121 has 4 divisors (see below), whose sum is σ = 22101307947600. Its totient is φ = 22100736256644.

The previous prime is 22101022102087. The next prime is 22101022102207. The reversal of 22101022102121 is 12120122010122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22101022102121 - 2¹⁸ = 22101021839977 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 22101022102121.

It is not an unprimeable number, because it can be changed into a prime (22101022122121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142806731 + ... + 142961408.

It is an arithmetic number, because the mean of its divisors is an integer number (5525326986900).

Almost surely, 2^{22101022102121} is an apocalyptic number.

It is an amenable number.

22101022102121 is a deficient number, since it is larger than the sum of its proper divisors (285845479).

22101022102121 is an equidigital number, since it uses as much as digits as its factorization.

22101022102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285845478.

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

Adding to 22101022102121 its reverse (12120122010122), we get a palindrome (34221144112243).

The spelling of 22101022102121 in words is "twenty-two trillion, one hundred one billion, twenty-two million, one hundred two thousand, one hundred twenty-one".