110131331221 has 2 divisors, whose sum is σ = 110131331222. Its totient is φ = 110131331220.

The previous prime is 110131331213. The next prime is 110131331237. The reversal of 110131331221 is 122133131011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102887619121 + 7243712100 = 320761^2 + 85110^2 .

It is an emirp because it is prime and its reverse (122133131011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110131331221 - 2³ = 110131331213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110131331201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55065665610 + 55065665611.

It is an arithmetic number, because the mean of its divisors is an integer number (55065665611).

Almost surely, 2^110131331221 is an apocalyptic number.

It is an amenable number.

110131331221 is a deficient number, since it is larger than the sum of its proper divisors (1).

110131331221 is an equidigital number, since it uses as much as digits as its factorization.

110131331221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 110131331221 its reverse (122133131011), we get a palindrome (232264462232).

The spelling of 110131331221 in words is "one hundred ten billion, one hundred thirty-one million, three hundred thirty-one thousand, two hundred twenty-one".