221120110331 has 2 divisors, whose sum is σ = 221120110332. Its totient is φ = 221120110330.

The previous prime is 221120110327. The next prime is 221120110349. The reversal of 221120110331 is 133011021122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221120110331 - 2² = 221120110327 is a prime.

It is a super-2 number, since 2×221120110331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221120110361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110560055165 + 110560055166.

It is an arithmetic number, because the mean of its divisors is an integer number (110560055166).

Almost surely, 2^221120110331 is an apocalyptic number.

221120110331 is a deficient number, since it is larger than the sum of its proper divisors (1).

221120110331 is an equidigital number, since it uses as much as digits as its factorization.

221120110331 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 17.

Adding to 221120110331 its reverse (133011021122), we get a palindrome (354131131453).

The spelling of 221120110331 in words is "two hundred twenty-one billion, one hundred twenty million, one hundred ten thousand, three hundred thirty-one".