122666422 has 4 divisors (see below), whose sum is σ = 183999636. Its totient is φ = 61333210.

The previous prime is 122666399. The next prime is 122666437. The reversal of 122666422 is 224666221.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30666604 + ... + 30666607.

It is an arithmetic number, because the mean of its divisors is an integer number (45999909).

Almost surely, 2^122666422 is an apocalyptic number.

122666422 is a deficient number, since it is larger than the sum of its proper divisors (61333214).

122666422 is an equidigital number, since it uses as much as digits as its factorization.

122666422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61333213.

The product of its digits is 13824, while the sum is 31.

The square root of 122666422 is about 11075.4874384832. The cubic root of 122666422 is about 496.8689972351.

The spelling of 122666422 in words is "one hundred twenty-two million, six hundred sixty-six thousand, four hundred twenty-two".