22412020121 has 12 divisors (see below), whose sum is σ = 23504024016. Its totient is φ = 21365273160.

The previous prime is 22412020079. The next prime is 22412020123. The reversal of 22412020121 is 12102021422.

It is a de Polignac number, because none of the positive numbers 2^k-22412020121 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 22412020121.

It is not an unprimeable number, because it can be changed into a prime (22412020123) 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 11 ways as a sum of consecutive naturals, for example, 109655 + ... + 238428.

It is an arithmetic number, because the mean of its divisors is an integer number (1958668668).

Almost surely, 2^22412020121 is an apocalyptic number.

It is an amenable number.

22412020121 is a deficient number, since it is larger than the sum of its proper divisors (1092003895).

22412020121 is an equidigital number, since it uses as much as digits as its factorization.

22412020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348212 (or 348181 counting only the distinct ones).

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

Adding to 22412020121 its reverse (12102021422), we get a palindrome (34514041543).

The spelling of 22412020121 in words is "twenty-two billion, four hundred twelve million, twenty thousand, one hundred twenty-one".