22101200002121 has 4 divisors (see below), whose sum is σ = 22101757885200. Its totient is φ = 22100642119044.

The previous prime is 22101200002043. The next prime is 22101200002127. The reversal of 22101200002121 is 12120000210122.

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 22101200002121 - 2¹⁸ = 22101199739977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22101200002096 and 22101200002105.

It is not an unprimeable number, because it can be changed into a prime (22101200002127) 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, 278882111 + ... + 278961348.

It is an arithmetic number, because the mean of its divisors is an integer number (5525439471300).

Almost surely, 2^{22101200002121} is an apocalyptic number.

It is an amenable number.

22101200002121 is a deficient number, since it is larger than the sum of its proper divisors (557883079).

22101200002121 is an equidigital number, since it uses as much as digits as its factorization.

22101200002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557883078.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22101200002121 its reverse (12120000210122), we get a palindrome (34221200212243).

The spelling of 22101200002121 in words is "twenty-two trillion, one hundred one billion, two hundred million, two thousand, one hundred twenty-one".