11110221021231 has 8 divisors (see below), whose sum is σ = 16459586698160. Its totient is φ = 7406814014136.

The previous prime is 11110221021223. The next prime is 11110221021281. The reversal of 11110221021231 is 13212012201111.

It is a happy number.

11110221021231 is a `hidden beast` number, since 111 + 102 + 210 + 212 + 31 = 666.

It is not a de Polignac number, because 11110221021231 - 2³ = 11110221021223 is a prime.

It is a super-2 number, since 2×11110221021231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110221021281) 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 in 7 ways as a sum of consecutive naturals, for example, 205744833700 + ... + 205744833753.

It is an arithmetic number, because the mean of its divisors is an integer number (2057448337270).

Almost surely, 2^{11110221021231} is an apocalyptic number.

11110221021231 is a deficient number, since it is larger than the sum of its proper divisors (5349365676929).

11110221021231 is an equidigital number, since it uses as much as digits as its factorization.

11110221021231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411489667462 (or 411489667456 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 11110221021231 its reverse (13212012201111), we get a palindrome (24322233222342).

The spelling of 11110221021231 in words is "eleven trillion, one hundred ten billion, two hundred twenty-one million, twenty-one thousand, two hundred thirty-one".