122547421265 has 16 divisors (see below), whose sum is σ = 148975243200. Its totient is φ = 96761372352.

The previous prime is 122547421261. The next prime is 122547421277. The reversal of 122547421265 is 562124745221.

It is a cyclic number.

It is not a de Polignac number, because 122547421265 - 2² = 122547421261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122547421261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277991 + ... + 567779.

It is an arithmetic number, because the mean of its divisors is an integer number (9310952700).

Almost surely, 2^122547421265 is an apocalyptic number.

It is an amenable number.

122547421265 is a deficient number, since it is larger than the sum of its proper divisors (26427821935).

122547421265 is a wasteful number, since it uses less digits than its factorization.

122547421265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290896.

The product of its digits is 268800, while the sum is 41.

The spelling of 122547421265 in words is "one hundred twenty-two billion, five hundred forty-seven million, four hundred twenty-one thousand, two hundred sixty-five".