122121333181 has 2 divisors, whose sum is σ = 122121333182. Its totient is φ = 122121333180.

The previous prime is 122121333157. The next prime is 122121333239. The reversal of 122121333181 is 181333121221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65520640900 + 56600692281 = 255970^2 + 237909^2 .

It is a cyclic number.

It is not a de Polignac number, because 122121333181 - 2⁵ = 122121333149 is a prime.

It is a super-2 number, since 2×122121333181² (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 (122121333101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060666590 + 61060666591.

It is an arithmetic number, because the mean of its divisors is an integer number (61060666591).

Almost surely, 2^122121333181 is an apocalyptic number.

It is an amenable number.

122121333181 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121333181 is an equidigital number, since it uses as much as digits as its factorization.

122121333181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

The spelling of 122121333181 in words is "one hundred twenty-two billion, one hundred twenty-one million, three hundred thirty-three thousand, one hundred eighty-one".