1331323221112 has 32 divisors (see below), whose sum is σ = 2511766908000. Its totient is φ = 661520581504.

The previous prime is 1331323221097. The next prime is 1331323221119. The reversal of 1331323221112 is 2111223231331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331323221119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5695698 + ... + 5924830.

It is an arithmetic number, because the mean of its divisors is an integer number (78492715875).

Almost surely, 2^{1331323221112} is an apocalyptic number.

It is an amenable number.

1331323221112 is a deficient number, since it is larger than the sum of its proper divisors (1180443686888).

1331323221112 is a wasteful number, since it uses less digits than its factorization.

1331323221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233655 (or 233651 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

Adding to 1331323221112 its reverse (2111223231331), we get a palindrome (3442546452443).

The spelling of 1331323221112 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-three million, two hundred twenty-one thousand, one hundred twelve".