126222566 has 16 divisors (see below), whose sum is σ = 192844800. Its totient is φ = 61950408.

The previous prime is 126222557. The next prime is 126222581. The reversal of 126222566 is 665222621.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26051 + ... + 30513.

It is an arithmetic number, because the mean of its divisors is an integer number (12052800).

Almost surely, 2^126222566 is an apocalyptic number.

126222566 is a deficient number, since it is larger than the sum of its proper divisors (66622234).

126222566 is a wasteful number, since it uses less digits than its factorization.

126222566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4723.

The product of its digits is 17280, while the sum is 32.

The square root of 126222566 is about 11234.8816638183. The cubic root of 126222566 is about 501.6248023156.

The spelling of 126222566 in words is "one hundred twenty-six million, two hundred twenty-two thousand, five hundred sixty-six".