222131313101 has 2 divisors, whose sum is σ = 222131313102. Its totient is φ = 222131313100.

The previous prime is 222131313083. The next prime is 222131313121. The reversal of 222131313101 is 101313131222.

It is a happy number.

It is an a-pointer prime, because the next prime (222131313121) can be obtained adding 222131313101 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221936152201 + 195160900 = 471101^2 + 13970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222131313101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222131313121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111065656550 + 111065656551.

It is an arithmetic number, because the mean of its divisors is an integer number (111065656551).

Almost surely, 2^222131313101 is an apocalyptic number.

It is an amenable number.

222131313101 is a deficient number, since it is larger than the sum of its proper divisors (1).

222131313101 is an equidigital number, since it uses as much as digits as its factorization.

222131313101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 222131313101 its reverse (101313131222), we get a palindrome (323444444323).

The spelling of 222131313101 in words is "two hundred twenty-two billion, one hundred thirty-one million, three hundred thirteen thousand, one hundred one".