12220112101997 has 2 divisors, whose sum is σ = 12220112101998. Its totient is φ = 12220112101996.

The previous prime is 12220112101937. The next prime is 12220112102027. The reversal of 12220112101997 is 79910121102221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12159964048996 + 60148053001 = 3487114^2 + 245251^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220112101997 - 2¹⁴ = 12220112085613 is a prime.

It is a super-2 number, since 2×12220112101997² (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 12220112101997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12220112101927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110056050998 + 6110056050999.

It is an arithmetic number, because the mean of its divisors is an integer number (6110056050999).

Almost surely, 2^{12220112101997} is an apocalyptic number.

It is an amenable number.

12220112101997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220112101997 is an equidigital number, since it uses as much as digits as its factorization.

12220112101997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 38.

The spelling of 12220112101997 in words is "twelve trillion, two hundred twenty billion, one hundred twelve million, one hundred one thousand, nine hundred ninety-seven".