22011202021121 has 16 divisors (see below), whose sum is σ = 23736627210240. Its totient is φ = 20358900334080.

The previous prime is 22011202021097. The next prime is 22011202021181. The reversal of 22011202021121 is 12112020211022.

It is a cyclic number.

It is not a de Polignac number, because 22011202021121 - 2⁶ = 22011202021057 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 22011202021121.

It is not an unprimeable number, because it can be changed into a prime (22011202021181) 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, 103175201 + ... + 103388318.

It is an arithmetic number, because the mean of its divisors is an integer number (1483539200640).

Almost surely, 2^{22011202021121} is an apocalyptic number.

It is an amenable number.

22011202021121 is a deficient number, since it is larger than the sum of its proper divisors (1725425189119).

22011202021121 is a wasteful number, since it uses less digits than its factorization.

22011202021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206563696.

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

Adding to 22011202021121 its reverse (12112020211022), we get a palindrome (34123222232143).

The spelling of 22011202021121 in words is "twenty-two trillion, eleven billion, two hundred two million, twenty-one thousand, one hundred twenty-one".