122553012 has 12 divisors (see below), whose sum is σ = 285957056. Its totient is φ = 40851000.

The previous prime is 122552999. The next prime is 122553019. The reversal of 122553012 is 210355221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 122553012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122553019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5106364 + ... + 5106387.

Almost surely, 2^122553012 is an apocalyptic number.

122553012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122553012 is an abundant number, since it is smaller than the sum of its proper divisors (163404044).

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

122553012 is a wasteful number, since it uses less digits than its factorization.

122553012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10212758 (or 10212756 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 122553012 is about 11070.3663896007. The cubic root of 122553012 is about 496.7158249518.

The spelling of 122553012 in words is "one hundred twenty-two million, five hundred fifty-three thousand, twelve".