222031 has 4 divisors (see below), whose sum is σ = 223200. Its totient is φ = 220864.

The previous prime is 222029. The next prime is 222041. The reversal of 222031 is 130222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 130222 = 2 ⋅65111.

It is a cyclic number.

It is not a de Polignac number, because 222031 - 2¹ = 222029 is a prime.

It is a super-2 number, since 2×222031² = 98595529922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221999 and 222017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222011) 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 3 ways as a sum of consecutive naturals, for example, 226 + ... + 703.

It is an arithmetic number, because the mean of its divisors is an integer number (55800).

2²²²⁰³¹ is an apocalyptic number.

222031 is a deficient number, since it is larger than the sum of its proper divisors (1169).

222031 is an equidigital number, since it uses as much as digits as its factorization.

222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 222031 is about 471.2016553451. The cubic root of 222031 is about 60.5533077501.

Adding to 222031 its reverse (130222), we get a palindrome (352253).

Subtracting from 222031 its reverse (130222), we obtain a square (91809 = 303²).

The spelling of 222031 in words is "two hundred twenty-two thousand, thirty-one".