21202112933 has 2 divisors, whose sum is σ = 21202112934. Its totient is φ = 21202112932.

The previous prime is 21202112927. The next prime is 21202112959. The reversal of 21202112933 is 33921120212.

It is an a-pointer prime, because the next prime (21202112959) can be obtained adding 21202112933 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13138432129 + 8063680804 = 114623^2 + 89798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21202112933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21202112903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601056466 + 10601056467.

It is an arithmetic number, because the mean of its divisors is an integer number (10601056467).

Almost surely, 2^21202112933 is an apocalyptic number.

It is an amenable number.

21202112933 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202112933 is an equidigital number, since it uses as much as digits as its factorization.

21202112933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 21202112933 in words is "twenty-one billion, two hundred two million, one hundred twelve thousand, nine hundred thirty-three".