22202120121 has 16 divisors (see below), whose sum is σ = 30691872000. Its totient is φ = 14259166208.

The previous prime is 22202120093. The next prime is 22202120147. The reversal of 22202120121 is 12102120222.

It is a cyclic number.

It is not a de Polignac number, because 22202120121 - 2⁷ = 22202119993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22202120121.

It is not an unprimeable number, because it can be changed into a prime (22202120191) 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, 245121 + ... + 323246.

It is an arithmetic number, because the mean of its divisors is an integer number (1918242000).

Almost surely, 2^22202120121 is an apocalyptic number.

It is an amenable number.

22202120121 is a deficient number, since it is larger than the sum of its proper divisors (8489751879).

22202120121 is a wasteful number, since it uses less digits than its factorization.

22202120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568848.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22202120121 its reverse (12102120222), we get a palindrome (34304240343).

The spelling of 22202120121 in words is "twenty-two billion, two hundred two million, one hundred twenty thousand, one hundred twenty-one".