122012256 has 24 divisors (see below), whose sum is σ = 320282424. Its totient is φ = 40670720.

The previous prime is 122012197. The next prime is 122012257. The reversal of 122012256 is 652210221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×122012256² = 29773981228419072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635385 + ... + 635576.

It is an arithmetic number, because the mean of its divisors is an integer number (13345101).

Almost surely, 2^122012256 is an apocalyptic number.

122012256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122012256 is an abundant number, since it is smaller than the sum of its proper divisors (198270168).

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

122012256 is a wasteful number, since it uses less digits than its factorization.

122012256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270974 (or 1270966 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 122012256 is about 11045.9158063060. The cubic root of 122012256 is about 495.9841739661.

Adding to 122012256 its reverse (652210221), we get a palindrome (774222477).

The spelling of 122012256 in words is "one hundred twenty-two million, twelve thousand, two hundred fifty-six".