122757810225 has 24 divisors (see below), whose sum is σ = 202969613280. Its totient is φ = 65467595520.

The previous prime is 122757810181. The next prime is 122757810233. The reversal of 122757810225 is 522018757221.

It is a happy number.

It is not a de Polignac number, because 122757810225 - 2¹¹ = 122757808177 is a prime.

It is a super-2 number, since 2×122757810225² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2992906 + ... + 3033644.

It is an arithmetic number, because the mean of its divisors is an integer number (8457067220).

Almost surely, 2^122757810225 is an apocalyptic number.

122757810225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122757810225 is a deficient number, since it is larger than the sum of its proper divisors (80211803055).

122757810225 is a wasteful number, since it uses less digits than its factorization.

122757810225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80929 (or 80924 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The spelling of 122757810225 in words is "one hundred twenty-two billion, seven hundred fifty-seven million, eight hundred ten thousand, two hundred twenty-five".