111010221197 has 2 divisors, whose sum is σ = 111010221198. Its totient is φ = 111010221196.

The previous prime is 111010221163. The next prime is 111010221229. The reversal of 111010221197 is 791122010111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107519065801 + 3491155396 = 327901^2 + 59086^2 .

It is a cyclic number.

It is not a de Polignac number, because 111010221197 - 2³⁴ = 93830352013 is a prime.

It is a super-2 number, since 2×111010221197² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111010221397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505110598 + 55505110599.

It is an arithmetic number, because the mean of its divisors is an integer number (55505110599).

Almost surely, 2^111010221197 is an apocalyptic number.

It is an amenable number.

111010221197 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010221197 is an equidigital number, since it uses as much as digits as its factorization.

111010221197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 26.

The spelling of 111010221197 in words is "one hundred eleven billion, ten million, two hundred twenty-one thousand, one hundred ninety-seven".