122749012 has 24 divisors (see below), whose sum is σ = 217048832. Its totient is φ = 60739200.

The previous prime is 122748991. The next prime is 122749013. The reversal of 122749012 is 210947221.

It is a super-2 number, since 2×122749012² = 30134639893952288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122749013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214687 + ... + 215257.

Almost surely, 2^122749012 is an apocalyptic number.

It is an amenable number.

122749012 is a deficient number, since it is larger than the sum of its proper divisors (94299820).

122749012 is a wasteful number, since it uses less digits than its factorization.

122749012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 122749012 is about 11079.2153151746. The cubic root of 122749012 is about 496.9804844252.

The spelling of 122749012 in words is "one hundred twenty-two million, seven hundred forty-nine thousand, twelve".