122277996 has 72 divisors (see below), whose sum is σ = 331596720. Its totient is φ = 37874304.

The previous prime is 122277971. The next prime is 122277997. The reversal of 122277996 is 699772221.

It is not an unprimeable number, because it can be changed into a prime (122277997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34566 + ... + 37938.

It is an arithmetic number, because the mean of its divisors is an integer number (4605510).

Almost surely, 2^122277996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122277996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165798360).

122277996 is an abundant number, since it is smaller than the sum of its proper divisors (209318724).

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

122277996 is a wasteful number, since it uses less digits than its factorization.

122277996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455 (or 3450 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 122277996 is about 11057.9381441569. The cubic root of 122277996 is about 496.3439937264.

The spelling of 122277996 in words is "one hundred twenty-two million, two hundred seventy-seven thousand, nine hundred ninety-six".