204251222 has 16 divisors (see below), whose sum is σ = 350423712. Its totient is φ = 87466560.

The previous prime is 204251149. The next prime is 204251227. The reversal of 204251222 is 222152402.

It is a junction number, because it is equal to n+sod(n) for n = 204251194 and 204251203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204251227) by changing a digit.

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, 14972 + ... + 25152.

It is an arithmetic number, because the mean of its divisors is an integer number (21901482).

Almost surely, 2^204251222 is an apocalyptic number.

204251222 is a deficient number, since it is larger than the sum of its proper divisors (146172490).

204251222 is a wasteful number, since it uses less digits than its factorization.

204251222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11623.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 204251222 is about 14291.6486802608. The cubic root of 204251222 is about 588.9180804300.

The spelling of 204251222 in words is "two hundred four million, two hundred fifty-one thousand, two hundred twenty-two".