222223531 has 8 divisors (see below), whose sum is σ = 230292864. Its totient is φ = 214210560.

The previous prime is 222223501. The next prime is 222223571. The reversal of 222223531 is 135322222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222223531 - 2¹⁵ = 222190763 is a prime.

It is a super-2 number, since 2×222223531² = 98766595460215922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222223501) 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, 5980 + ... + 21913.

It is an arithmetic number, because the mean of its divisors is an integer number (28786608).

Almost surely, 2^222223531 is an apocalyptic number.

222223531 is a deficient number, since it is larger than the sum of its proper divisors (8069333).

222223531 is a wasteful number, since it uses less digits than its factorization.

222223531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28181.

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

The square root of 222223531 is about 14907.1637476751. The cubic root of 222223531 is about 605.7080533786.

Adding to 222223531 its reverse (135322222), we get a palindrome (357545753).

The spelling of 222223531 in words is "two hundred twenty-two million, two hundred twenty-three thousand, five hundred thirty-one".