22012101929 has 2 divisors, whose sum is σ = 22012101930. Its totient is φ = 22012101928.

The previous prime is 22012101911. The next prime is 22012101973. The reversal of 22012101929 is 92910121022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11516509225 + 10495592704 = 107315^2 + 102448^2 .

It is a cyclic number.

It is not a de Polignac number, because 22012101929 - 2²⁸ = 21743666473 is a prime.

It is not a weakly prime, because it can be changed into another prime (22012101229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006050964 + 11006050965.

It is an arithmetic number, because the mean of its divisors is an integer number (11006050965).

Almost surely, 2^22012101929 is an apocalyptic number.

It is an amenable number.

22012101929 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012101929 is an equidigital number, since it uses as much as digits as its factorization.

22012101929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 22012101929 in words is "twenty-two billion, twelve million, one hundred one thousand, nine hundred twenty-nine".