222100331 has 2 divisors, whose sum is σ = 222100332. Its totient is φ = 222100330.

The previous prime is 222100309. The next prime is 222100343. The reversal of 222100331 is 133001222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222100331 - 2¹⁰ = 222099307 is a prime.

It is a super-2 number, since 2×222100331² = 98657114060619122, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (222100231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111050165 + 111050166.

It is an arithmetic number, because the mean of its divisors is an integer number (111050166).

Almost surely, 2^222100331 is an apocalyptic number.

222100331 is a deficient number, since it is larger than the sum of its proper divisors (1).

222100331 is an equidigital number, since it uses as much as digits as its factorization.

222100331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 222100331 is about 14903.0309333370. The cubic root of 222100331 is about 605.5960984979.

Adding to 222100331 its reverse (133001222), we get a palindrome (355101553).

The spelling of 222100331 in words is "two hundred twenty-two million, one hundred thousand, three hundred thirty-one".