11122210021997 has 2 divisors, whose sum is σ = 11122210021998. Its totient is φ = 11122210021996.

The previous prime is 11122210021987. The next prime is 11122210022003. The reversal of 11122210021997 is 79912001222111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9650503788676 + 1471706233321 = 3106526^2 + 1213139^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122210021997 - 2¹² = 11122210017901 is a prime.

It is a super-3 number, since 3×11122210021997³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11122210021997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11122210021927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561105010998 + 5561105010999.

It is an arithmetic number, because the mean of its divisors is an integer number (5561105010999).

Almost surely, 2^{11122210021997} is an apocalyptic number.

It is an amenable number.

11122210021997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122210021997 is an equidigital number, since it uses as much as digits as its factorization.

11122210021997 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 11122210021997 in words is "eleven trillion, one hundred twenty-two billion, two hundred ten million, twenty-one thousand, nine hundred ninety-seven".