122257426 has 8 divisors (see below), whose sum is σ = 183533580. Its totient is φ = 61079568.

The previous prime is 122257411. The next prime is 122257427. The reversal of 122257426 is 624752221.

It can be written as a sum of positive squares in 2 ways, for example, as 115240225 + 7017201 = 10735^2 + 2649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (122257427) 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, 21381 + ... + 26488.

Almost surely, 2^122257426 is an apocalyptic number.

122257426 is a deficient number, since it is larger than the sum of its proper divisors (61276154).

122257426 is a wasteful number, since it uses less digits than its factorization.

122257426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49148.

The product of its digits is 13440, while the sum is 31.

The square root of 122257426 is about 11057.0080039765. The cubic root of 122257426 is about 496.3161599682.

The spelling of 122257426 in words is "one hundred twenty-two million, two hundred fifty-seven thousand, four hundred twenty-six".