22002111220997 has 2 divisors, whose sum is σ = 22002111220998. Its totient is φ = 22002111220996.

The previous prime is 22002111220951. The next prime is 22002111221021. The reversal of 22002111220997 is 79902211120022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21875442140161 + 126669080836 = 4677119^2 + 355906^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002111220997 - 2¹⁶ = 22002111155461 is a prime.

It is a super-2 number, since 2×22002111220997² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22002111220997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22002111220097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001055610498 + 11001055610499.

It is an arithmetic number, because the mean of its divisors is an integer number (11001055610499).

Almost surely, 2^{22002111220997} is an apocalyptic number.

It is an amenable number.

22002111220997 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002111220997 is an equidigital number, since it uses as much as digits as its factorization.

22002111220997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 22002111220997 in words is "twenty-two trillion, two billion, one hundred eleven million, two hundred twenty thousand, nine hundred ninety-seven".