22112021929 has 2 divisors, whose sum is σ = 22112021930. Its totient is φ = 22112021928.

The previous prime is 22112021923. The next prime is 22112022001. The reversal of 22112021929 is 92912021122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14920133904 + 7191888025 = 122148^2 + 84805^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112021929 - 2⁷ = 22112021801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22112021929.

It is not a weakly prime, because it can be changed into another prime (22112021923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056010964 + 11056010965.

It is an arithmetic number, because the mean of its divisors is an integer number (11056010965).

Almost surely, 2^22112021929 is an apocalyptic number.

It is an amenable number.

22112021929 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112021929 is an equidigital number, since it uses as much as digits as its factorization.

22112021929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

It can be divided in two parts, 221120 and 21929, that added together give a square (243049 = 493²).

The spelling of 22112021929 in words is "twenty-two billion, one hundred twelve million, twenty-one thousand, nine hundred twenty-nine".