22101210021121 has 128 divisors (see below), whose sum is σ = 31292739072000. Its totient is φ = 15065832038400.

The previous prime is 22101210021061. The next prime is 22101210021151. The reversal of 22101210021121 is 12112001210122.

It is not a de Polignac number, because 22101210021121 - 2²⁹ = 22100673150209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22101210021095 and 22101210021104.

It is not an unprimeable number, because it can be changed into a prime (22101210021151) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 764495215 + ... + 764524123.

It is an arithmetic number, because the mean of its divisors is an integer number (244474524000).

Almost surely, 2^{22101210021121} is an apocalyptic number.

It is an amenable number.

22101210021121 is a deficient number, since it is larger than the sum of its proper divisors (9191529050879).

22101210021121 is a wasteful number, since it uses less digits than its factorization.

22101210021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29543.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22101210021121 its reverse (12112001210122), we get a palindrome (34213211231243).

The spelling of 22101210021121 in words is "twenty-two trillion, one hundred one billion, two hundred ten million, twenty-one thousand, one hundred twenty-one".