122705772 has 48 divisors (see below), whose sum is σ = 327774720. Its totient is φ = 34998912.

The previous prime is 122705761. The next prime is 122705797. The reversal of 122705772 is 277507221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77929 + ... + 79487.

It is an arithmetic number, because the mean of its divisors is an integer number (6828640).

Almost surely, 2^122705772 is an apocalyptic number.

122705772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122705772 is an abundant number, since it is smaller than the sum of its proper divisors (205068948).

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

122705772 is a wasteful number, since it uses less digits than its factorization.

122705772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510 (or 2508 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 122705772 is about 11077.2637415564. The cubic root of 122705772 is about 496.9221215387.

The spelling of 122705772 in words is "one hundred twenty-two million, seven hundred five thousand, seven hundred seventy-two".