122152081 has 2 divisors, whose sum is σ = 122152082. Its totient is φ = 122152080.

The previous prime is 122152061. The next prime is 122152099. The reversal of 122152081 is 180251221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109307025 + 12845056 = 10455^2 + 3584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122152081 is a prime.

It is a super-2 number, since 2×122152081² = 29842261785261122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122152001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61076040 + 61076041.

It is an arithmetic number, because the mean of its divisors is an integer number (61076041).

Almost surely, 2^122152081 is an apocalyptic number.

It is an amenable number.

122152081 is a deficient number, since it is larger than the sum of its proper divisors (1).

122152081 is an equidigital number, since it uses as much as digits as its factorization.

122152081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 122152081 is about 11052.2432564616. The cubic root of 122152081 is about 496.1735661752.

The spelling of 122152081 in words is "one hundred twenty-two million, one hundred fifty-two thousand, eighty-one".