22121110422097 has 2 divisors, whose sum is σ = 22121110422098. Its totient is φ = 22121110422096.

The previous prime is 22121110422049. The next prime is 22121110422143. The reversal of 22121110422097 is 79022401112122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21085582345216 + 1035528076881 = 4591904^2 + 1017609^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22121110422097 is a prime.

It is not a weakly prime, because it can be changed into another prime (22121110422007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060555211048 + 11060555211049.

It is an arithmetic number, because the mean of its divisors is an integer number (11060555211049).

Almost surely, 2^{22121110422097} is an apocalyptic number.

It is an amenable number.

22121110422097 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121110422097 is an equidigital number, since it uses as much as digits as its factorization.

22121110422097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 22121110422097 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred ten million, four hundred twenty-two thousand, ninety-seven".