222112221197 has 2 divisors, whose sum is σ = 222112221198. Its totient is φ = 222112221196.

The previous prime is 222112221181. The next prime is 222112221223. The reversal of 222112221197 is 791122211222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219126035881 + 2986185316 = 468109^2 + 54646^2 .

It is a cyclic number.

It is not a de Polignac number, because 222112221197 - 2⁴ = 222112221181 is a prime.

It is a super-2 number, since 2×222112221197² (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 (222112221797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111056110598 + 111056110599.

It is an arithmetic number, because the mean of its divisors is an integer number (111056110599).

Almost surely, 2^222112221197 is an apocalyptic number.

It is an amenable number.

222112221197 is a deficient number, since it is larger than the sum of its proper divisors (1).

222112221197 is an equidigital number, since it uses as much as digits as its factorization.

222112221197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 32.

The spelling of 222112221197 in words is "two hundred twenty-two billion, one hundred twelve million, two hundred twenty-one thousand, one hundred ninety-seven".