122158316 has 12 divisors (see below), whose sum is σ = 244316688. Its totient is φ = 52353552.

The previous prime is 122158303. The next prime is 122158319. The reversal of 122158316 is 613851221.

122158316 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (122158319) 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, 2181371 + ... + 2181426.

It is an arithmetic number, because the mean of its divisors is an integer number (20359724).

Almost surely, 2^122158316 is an apocalyptic number.

It is an amenable number.

122158316 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

122158316 is a wasteful number, since it uses less digits than its factorization.

122158316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4362808 (or 4362806 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 122158316 is about 11052.5253222963. The cubic root of 122158316 is about 496.1820080822.

The spelling of 122158316 in words is "one hundred twenty-two million, one hundred fifty-eight thousand, three hundred sixteen".