222503231 has 2 divisors, whose sum is σ = 222503232. Its totient is φ = 222503230.

The previous prime is 222503227. The next prime is 222503257. The reversal of 222503231 is 132305222.

222503231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222503231 - 2² = 222503227 is a prime.

It is a super-2 number, since 2×222503231² = 99015375610878722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222503201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111251615 + 111251616.

It is an arithmetic number, because the mean of its divisors is an integer number (111251616).

Almost surely, 2^222503231 is an apocalyptic number.

222503231 is a deficient number, since it is larger than the sum of its proper divisors (1).

222503231 is an equidigital number, since it uses as much as digits as its factorization.

222503231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 222503231 is about 14916.5421931492. The cubic root of 222503231 is about 605.9620701534.

Adding to 222503231 its reverse (132305222), we get a palindrome (354808453).

The spelling of 222503231 in words is "two hundred twenty-two million, five hundred three thousand, two hundred thirty-one".