222499401 has 32 divisors (see below), whose sum is σ = 316895232. Its totient is φ = 138568320.

The previous prime is 222499393. The next prime is 222499421. The reversal of 222499401 is 104994222.

It is not a de Polignac number, because 222499401 - 2³ = 222499393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222499421) 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 31 ways as a sum of consecutive naturals, for example, 820896 + ... + 821166.

It is an arithmetic number, because the mean of its divisors is an integer number (9902976).

Almost surely, 2^222499401 is an apocalyptic number.

It is an amenable number.

222499401 is a deficient number, since it is larger than the sum of its proper divisors (94395831).

222499401 is a wasteful number, since it uses less digits than its factorization.

222499401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 222499401 is about 14916.4138116372. The cubic root of 222499401 is about 605.9585932780.

The spelling of 222499401 in words is "two hundred twenty-two million, four hundred ninety-nine thousand, four hundred one".