122718213 has 16 divisors (see below), whose sum is σ = 182357760. Its totient is φ = 81563328.

The previous prime is 122718209. The next prime is 122718221. The reversal of 122718213 is 312817221.

It is not a de Polignac number, because 122718213 - 2² = 122718209 is a prime.

It is a super-3 number, since 3×122718213³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122718203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2356 + ... + 15842.

It is an arithmetic number, because the mean of its divisors is an integer number (11397360).

Almost surely, 2^122718213 is an apocalyptic number.

It is an amenable number.

122718213 is a deficient number, since it is larger than the sum of its proper divisors (59639547).

122718213 is a wasteful number, since it uses less digits than its factorization.

122718213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13833 (or 13827 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 122718213 is about 11077.8252829696. The cubic root of 122718213 is about 496.9389150959.

The spelling of 122718213 in words is "one hundred twenty-two million, seven hundred eighteen thousand, two hundred thirteen".