22200000121 has 16 divisors (see below), whose sum is σ = 25174240000. Its totient is φ = 19407403008.

The previous prime is 22200000089. The next prime is 22200000133. The reversal of 22200000121 is 12100000222.

It is a cyclic number.

It is not a de Polignac number, because 22200000121 - 2⁵ = 22200000089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22200000098 and 22200000107.

It is not an unprimeable number, because it can be changed into a prime (22200000191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840880 + ... + 866878.

It is an arithmetic number, because the mean of its divisors is an integer number (1573390000).

Almost surely, 2^22200000121 is an apocalyptic number.

It is an amenable number.

22200000121 is a deficient number, since it is larger than the sum of its proper divisors (2974239879).

22200000121 is a wasteful number, since it uses less digits than its factorization.

22200000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29488.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22200000121 its reverse (12100000222), we get a palindrome (34300000343).

The spelling of 22200000121 in words is "twenty-two billion, two hundred million, one hundred twenty-one", and thus it is an aban number.