122447680121 has 16 divisors (see below), whose sum is σ = 139702356864. Its totient is φ = 106319879424.

The previous prime is 122447680099. The next prime is 122447680133. The reversal of 122447680121 is 121086744221.

It is a cyclic number.

It is not a de Polignac number, because 122447680121 - 2³⁴ = 105267810937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122447680141) 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, 238670 + ... + 549416.

It is an arithmetic number, because the mean of its divisors is an integer number (8731397304).

Almost surely, 2^122447680121 is an apocalyptic number.

It is an amenable number.

122447680121 is a deficient number, since it is larger than the sum of its proper divisors (17254676743).

122447680121 is a wasteful number, since it uses less digits than its factorization.

122447680121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312560.

The product of its (nonzero) digits is 43008, while the sum is 38.

The spelling of 122447680121 in words is "one hundred twenty-two billion, four hundred forty-seven million, six hundred eighty thousand, one hundred twenty-one".