1131011221210 has 48 divisors (see below), whose sum is σ = 2235517107840. Its totient is φ = 411722351040.

The previous prime is 1131011221129. The next prime is 1131011221247. The reversal of 1131011221210 is 121221101311.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4592950 + ... + 4832929.

It is an arithmetic number, because the mean of its divisors is an integer number (46573273080).

Almost surely, 2^{1131011221210} is an apocalyptic number.

1131011221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131011221210 is a deficient number, since it is larger than the sum of its proper divisors (1104505886630).

1131011221210 is a wasteful number, since it uses less digits than its factorization.

1131011221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9425983 (or 9425970 counting only the distinct ones).

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

Adding to 1131011221210 its reverse (121221101311), we get a palindrome (1252232322521).

The spelling of 1131011221210 in words is "one trillion, one hundred thirty-one billion, eleven million, two hundred twenty-one thousand, two hundred ten".