22012204121 has 8 divisors (see below), whose sum is σ = 23172192000. Its totient is φ = 20852361360.

The previous prime is 22012204117. The next prime is 22012204141. The reversal of 22012204121 is 12140221022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22012204121 - 2² = 22012204117 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 22012204121.

It is not an unprimeable number, because it can be changed into a prime (22012204141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426680 + ... + 475478.

It is an arithmetic number, because the mean of its divisors is an integer number (2896524000).

Almost surely, 2^22012204121 is an apocalyptic number.

It is an amenable number.

22012204121 is a deficient number, since it is larger than the sum of its proper divisors (1159987879).

22012204121 is a wasteful number, since it uses less digits than its factorization.

22012204121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72559.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22012204121 its reverse (12140221022), we get a palindrome (34152425143).

The spelling of 22012204121 in words is "twenty-two billion, twelve million, two hundred four thousand, one hundred twenty-one".