122200111021181 has 2 divisors, whose sum is σ = 122200111021182. Its totient is φ = 122200111021180.

The previous prime is 122200111021133. The next prime is 122200111021217. The reversal of 122200111021181 is 181120111002221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115872199716025 + 6327911305156 = 10764395^2 + 2515534^2 .

It is a cyclic number.

It is not a de Polignac number, because 122200111021181 - 2¹⁸ = 122200110759037 is a prime.

It is a super-2 number, since 2×122200111021181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122200111021981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61100055510590 + 61100055510591.

It is an arithmetic number, because the mean of its divisors is an integer number (61100055510591).

Almost surely, 2^{122200111021181} is an apocalyptic number.

It is an amenable number.

122200111021181 is a deficient number, since it is larger than the sum of its proper divisors (1).

122200111021181 is an equidigital number, since it uses as much as digits as its factorization.

122200111021181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 23.

The spelling of 122200111021181 in words is "one hundred twenty-two trillion, two hundred billion, one hundred eleven million, twenty-one thousand, one hundred eighty-one".