1131221102110 has 32 divisors (see below), whose sum is σ = 2226254220000. Its totient is φ = 410436956160.

The previous prime is 1131221102093. The next prime is 1131221102191. The reversal of 1131221102110 is 112011221311.

It is a happy number.

It is a super-2 number, since 2×1131221102110² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11402535 + ... + 11501314.

It is an arithmetic number, because the mean of its divisors is an integer number (69570444375).

Almost surely, 2^{1131221102110} is an apocalyptic number.

1131221102110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131221102110 is a deficient number, since it is larger than the sum of its proper divisors (1095033117890).

1131221102110 is a wasteful number, since it uses less digits than its factorization.

1131221102110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22904316.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1131221102110 its reverse (112011221311), we get a palindrome (1243232323421).

The spelling of 1131221102110 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-one million, one hundred two thousand, one hundred ten".