111212012202097 has 2 divisors, whose sum is σ = 111212012202098. Its totient is φ = 111212012202096.

The previous prime is 111212012202089. The next prime is 111212012202101. The reversal of 111212012202097 is 790202210212111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93504335815696 + 17707676386401 = 9669764^2 + 4208049^2 .

It is a cyclic number.

It is not a de Polignac number, because 111212012202097 - 2³ = 111212012202089 is a prime.

It is a super-2 number, since 2×111212012202097² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111212012202017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55606006101048 + 55606006101049.

It is an arithmetic number, because the mean of its divisors is an integer number (55606006101049).

Almost surely, 2^{111212012202097} is an apocalyptic number.

It is an amenable number.

111212012202097 is a deficient number, since it is larger than the sum of its proper divisors (1).

111212012202097 is an equidigital number, since it uses as much as digits as its factorization.

111212012202097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 111212012202097 in words is "one hundred eleven trillion, two hundred twelve billion, twelve million, two hundred two thousand, ninety-seven".