122521611435161 has 16 divisors (see below), whose sum is σ = 133235865221760. Its totient is φ = 112197078362880.

The previous prime is 122521611435121. The next prime is 122521611435191. The reversal of 122521611435161 is 161534116125221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122521611435161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122521611435121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103649546 + ... + 104824956.

It is an arithmetic number, because the mean of its divisors is an integer number (8327241576360).

Almost surely, 2^{122521611435161} is an apocalyptic number.

It is an amenable number.

122521611435161 is a deficient number, since it is larger than the sum of its proper divisors (10714253786599).

122521611435161 is a wasteful number, since it uses less digits than its factorization.

122521611435161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341184.

The product of its digits is 86400, while the sum is 41.

The spelling of 122521611435161 in words is "one hundred twenty-two trillion, five hundred twenty-one billion, six hundred eleven million, four hundred thirty-five thousand, one hundred sixty-one".