222143244 has 24 divisors (see below), whose sum is σ = 529363968. Its totient is φ = 72472080.

The previous prime is 222143239. The next prime is 222143249. The reversal of 222143244 is 442341222.

222143244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222143239) and next prime (222143249).

It is a super-4 number, since 4×222143244⁴ (a number of 34 digits) contains 4444 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (222143249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196372 + ... + 197499.

It is an arithmetic number, because the mean of its divisors is an integer number (22056832).

Almost surely, 2^222143244 is an apocalyptic number.

It is an amenable number.

222143244 is an abundant number, since it is smaller than the sum of its proper divisors (307220724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222143244 is a wasteful number, since it uses less digits than its factorization.

222143244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393925 (or 393923 counting only the distinct ones).

The product of its digits is 3072, while the sum is 24.

The square root of 222143244 is about 14904.4706044864. The cubic root of 222143244 is about 605.6350992979.

Adding to 222143244 its reverse (442341222), we get a palindrome (664484466).

The spelling of 222143244 in words is "two hundred twenty-two million, one hundred forty-three thousand, two hundred forty-four".