22201102021997 has 2 divisors, whose sum is σ = 22201102021998. Its totient is φ = 22201102021996.

The previous prime is 22201102021963. The next prime is 22201102022111. The reversal of 22201102021997 is 79912020110222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13927965816361 + 8273136205636 = 3732019^2 + 2876306^2 .

It is a cyclic number.

It is not a de Polignac number, because 22201102021997 - 2²⁰ = 22201100973421 is a prime.

It is a super-2 number, since 2×22201102021997² (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 22201102021997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22201102021097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100551010998 + 11100551010999.

It is an arithmetic number, because the mean of its divisors is an integer number (11100551010999).

Almost surely, 2^{22201102021997} is an apocalyptic number.

It is an amenable number.

22201102021997 is a deficient number, since it is larger than the sum of its proper divisors (1).

22201102021997 is an equidigital number, since it uses as much as digits as its factorization.

22201102021997 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 22201102021997 in words is "twenty-two trillion, two hundred one billion, one hundred two million, twenty-one thousand, nine hundred ninety-seven".