122622817 has 4 divisors (see below), whose sum is σ = 126851220. Its totient is φ = 118394416.

The previous prime is 122622779. The next prime is 122622833. The reversal of 122622817 is 718226221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46566976 + 76055841 = 6824^2 + 8721^2 .

It is a cyclic number.

It is not a de Polignac number, because 122622817 - 2²³ = 114234209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122622317) 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, 2114158 + ... + 2114215.

It is an arithmetic number, because the mean of its divisors is an integer number (31712805).

Almost surely, 2^122622817 is an apocalyptic number.

It is an amenable number.

122622817 is a deficient number, since it is larger than the sum of its proper divisors (4228403).

122622817 is an equidigital number, since it uses as much as digits as its factorization.

122622817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4228402.

The product of its digits is 5376, while the sum is 31.

The square root of 122622817 is about 11073.5187271255. The cubic root of 122622817 is about 496.8101152144.

The spelling of 122622817 in words is "one hundred twenty-two million, six hundred twenty-two thousand, eight hundred seventeen".