122615225705 has 12 divisors (see below), whose sum is σ = 171160846020. Its totient is φ = 84079011744.

The previous prime is 122615225611. The next prime is 122615225713. The reversal of 122615225705 is 507522516221.

It can be written as a sum of positive squares in 2 ways, for example, as 74269330576 + 48345895129 = 272524^2 + 219877^2 .

It is not a de Polignac number, because 122615225705 - 2³² = 118320258409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250234910 + ... + 250235399.

It is an arithmetic number, because the mean of its divisors is an integer number (14263403835).

Almost surely, 2^122615225705 is an apocalyptic number.

It is an amenable number.

122615225705 is a deficient number, since it is larger than the sum of its proper divisors (48545620315).

122615225705 is an equidigital number, since it uses as much as digits as its factorization.

122615225705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500470328 (or 500470321 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 122615225705 in words is "one hundred twenty-two billion, six hundred fifteen million, two hundred twenty-five thousand, seven hundred five".