122254780 has 12 divisors (see below), whose sum is σ = 256735080. Its totient is φ = 48901904.

The previous prime is 122254763. The next prime is 122254787. The reversal of 122254780 is 87452221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122254787) 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, 3056350 + ... + 3056389.

It is an arithmetic number, because the mean of its divisors is an integer number (21394590).

Almost surely, 2^122254780 is an apocalyptic number.

122254780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122254780 is an abundant number, since it is smaller than the sum of its proper divisors (134480300).

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

122254780 is a wasteful number, since it uses less digits than its factorization.

122254780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6112748 (or 6112746 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 122254780 is about 11056.8883507070. Note that the first 3 decimals coincide. The cubic root of 122254780 is about 496.3125793758.

The spelling of 122254780 in words is "one hundred twenty-two million, two hundred fifty-four thousand, seven hundred eighty".