9933112621 has 2 divisors, whose sum is σ = 9933112622. Its totient is φ = 9933112620.

The previous prime is 9933112601. The next prime is 9933112627. The reversal of 9933112621 is 1262113399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9908012521 + 25100100 = 99539^2 + 5010^2 .

It is a cyclic number.

It is not a de Polignac number, because 9933112621 - 2²¹ = 9931015469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9933112627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4966556310 + 4966556311.

It is an arithmetic number, because the mean of its divisors is an integer number (4966556311).

Almost surely, 2^9933112621 is an apocalyptic number.

It is an amenable number.

9933112621 is a deficient number, since it is larger than the sum of its proper divisors (1).

9933112621 is an equidigital number, since it uses as much as digits as its factorization.

9933112621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 37.

The square root of 9933112621 is about 99665.0019866553. The cubic root of 9933112621 is about 2149.6204573222.

The spelling of 9933112621 in words is "nine billion, nine hundred thirty-three million, one hundred twelve thousand, six hundred twenty-one".