222143492 has 12 divisors (see below), whose sum is σ = 388885980. Its totient is φ = 111033216.

The previous prime is 222143431. The next prime is 222143503. The reversal of 222143492 is 294341222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 111809476 + 110334016 = 10574^2 + 10504^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6248 + ... + 21984.

It is an arithmetic number, because the mean of its divisors is an integer number (32407165).

Almost surely, 2^222143492 is an apocalyptic number.

It is an amenable number.

222143492 is a deficient number, since it is larger than the sum of its proper divisors (166742488).

222143492 is a wasteful number, since it uses less digits than its factorization.

222143492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19270 (or 19268 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 222143492 is about 14904.4789241355. The cubic root of 222143492 is about 605.6353246742.

The spelling of 222143492 in words is "two hundred twenty-two million, one hundred forty-three thousand, four hundred ninety-two".