222143031 has 24 divisors (see below), whose sum is σ = 358190976. Its totient is φ = 131498640.

The previous prime is 222143017. The next prime is 222143059. The reversal of 222143031 is 130341222.

It is not a de Polignac number, because 222143031 - 2⁶ = 222142967 is a prime.

It is a super-2 number, since 2×222143031² = 98695052443733922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222142995 and 222143013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222143071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21835 + ... + 30348.

It is an arithmetic number, because the mean of its divisors is an integer number (14924624).

Almost surely, 2^222143031 is an apocalyptic number.

222143031 is a deficient number, since it is larger than the sum of its proper divisors (136047945).

222143031 is a wasteful number, since it uses less digits than its factorization.

222143031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52243 (or 52240 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 222143031 is about 14904.4634589776. The cubic root of 222143031 is about 605.6349057286.

Adding to 222143031 its reverse (130341222), we get a palindrome (352484253).

The spelling of 222143031 in words is "two hundred twenty-two million, one hundred forty-three thousand, thirty-one".