222448931 has 2 divisors, whose sum is σ = 222448932. Its totient is φ = 222448930.

The previous prime is 222448909. The next prime is 222448943. The reversal of 222448931 is 139844222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222448931 - 2⁶ = 222448867 is a prime.

It is a super-2 number, since 2×222448931² = 98967053806085522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222448891 and 222448900.

It is not a weakly prime, because it can be changed into another prime (222447931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111224465 + 111224466.

It is an arithmetic number, because the mean of its divisors is an integer number (111224466).

Almost surely, 2^222448931 is an apocalyptic number.

222448931 is a deficient number, since it is larger than the sum of its proper divisors (1).

222448931 is an equidigital number, since it uses as much as digits as its factorization.

222448931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 35.

The square root of 222448931 is about 14914.7219551690. The cubic root of 222448931 is about 605.9127728657.

The spelling of 222448931 in words is "two hundred twenty-two million, four hundred forty-eight thousand, nine hundred thirty-one".