122507228 has 6 divisors (see below), whose sum is σ = 214387656. Its totient is φ = 61253612.

The previous prime is 122507191. The next prime is 122507249. The reversal of 122507228 is 822705221.

It is a self number, because there is not a number n which added to its sum of digits gives 122507228.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15313400 + ... + 15313407.

It is an arithmetic number, because the mean of its divisors is an integer number (35731276).

Almost surely, 2^122507228 is an apocalyptic number.

It is an amenable number.

122507228 is a deficient number, since it is larger than the sum of its proper divisors (91880428).

122507228 is a wasteful number, since it uses less digits than its factorization.

122507228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30626811 (or 30626809 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 122507228 is about 11068.2983335290. The cubic root of 122507228 is about 496.6539620090.

The spelling of 122507228 in words is "one hundred twenty-two million, five hundred seven thousand, two hundred twenty-eight".