122454665025 has 144 divisors (see below), whose sum is σ = 258505371264. Its totient is φ = 50054400000.

The previous prime is 122454664999. The next prime is 122454665059. The reversal of 122454665025 is 520566454221.

It is a happy number.

It is not a de Polignac number, because 122454665025 - 2¹³ = 122454656833 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3859225 + ... + 3890825.

Almost surely, 2^122454665025 is an apocalyptic number.

122454665025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122454665025 is an abundant number, since it is smaller than the sum of its proper divisors (136050706239).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122454665025 is a wasteful number, since it uses less digits than its factorization.

122454665025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31704 (or 31688 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 122454665025 in words is "one hundred twenty-two billion, four hundred fifty-four million, six hundred sixty-five thousand, twenty-five".