20221333002991 has 2 divisors, whose sum is σ = 20221333002992. Its totient is φ = 20221333002990.

The previous prime is 20221333002979. The next prime is 20221333003031. The reversal of 20221333002991 is 19920033312202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20221333002991 - 2²⁹ = 20220796132079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20221333002991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20221333002961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110666501495 + 10110666501496.

It is an arithmetic number, because the mean of its divisors is an integer number (10110666501496).

Almost surely, 2^{20221333002991} is an apocalyptic number.

20221333002991 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221333002991 is an equidigital number, since it uses as much as digits as its factorization.

20221333002991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 20221333002991 in words is "twenty trillion, two hundred twenty-one billion, three hundred thirty-three million, two thousand, nine hundred ninety-one".