222345031 has 4 divisors (see below), whose sum is σ = 223316200. Its totient is φ = 221373864.

The previous prime is 222345007. The next prime is 222345041. The reversal of 222345031 is 130543222.

222345031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222345031 - 2⁵ = 222344999 is a prime.

It is a super-2 number, since 2×222345031² = 98874625620781922, 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 = 222344993 and 222345011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222345041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485241 + ... + 485698.

It is an arithmetic number, because the mean of its divisors is an integer number (55829050).

Almost surely, 2^222345031 is an apocalyptic number.

222345031 is a deficient number, since it is larger than the sum of its proper divisors (971169).

222345031 is an equidigital number, since it uses as much as digits as its factorization.

222345031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971168.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 222345031 is about 14911.2384126873. The cubic root of 222345031 is about 605.8184229089.

Adding to 222345031 its reverse (130543222), we get a palindrome (352888253).

The spelling of 222345031 in words is "two hundred twenty-two million, three hundred forty-five thousand, thirty-one".