122153055191 has 2 divisors, whose sum is σ = 122153055192. Its totient is φ = 122153055190.

The previous prime is 122153055163. The next prime is 122153055197. The reversal of 122153055191 is 191550351221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122153055191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122153055197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61076527595 + 61076527596.

It is an arithmetic number, because the mean of its divisors is an integer number (61076527596).

Almost surely, 2^122153055191 is an apocalyptic number.

122153055191 is a deficient number, since it is larger than the sum of its proper divisors (1).

122153055191 is an equidigital number, since it uses as much as digits as its factorization.

122153055191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 35.

It can be divided in two parts, 1221530 and 55191, that added together give a palindrome (1276721).

The spelling of 122153055191 in words is "one hundred twenty-two billion, one hundred fifty-three million, fifty-five thousand, one hundred ninety-one".