1331320221122 has 8 divisors (see below), whose sum is σ = 1996992896700. Its totient is φ = 665655922224.

The previous prime is 1331320221071. The next prime is 1331320221139. The reversal of 1331320221122 is 2211220231331.

It can be written as a sum of positive squares in 2 ways, for example, as 1203498955681 + 127821265441 = 1097041^2 + 357521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1680497 + ... + 2342372.

Almost surely, 2^{1331320221122} is an apocalyptic number.

1331320221122 is a deficient number, since it is larger than the sum of its proper divisors (665672675578).

1331320221122 is a wasteful number, since it uses less digits than its factorization.

1331320221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188340.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1331320221122 its reverse (2211220231331), we get a palindrome (3542540452453).

The spelling of 1331320221122 in words is "one trillion, three hundred thirty-one billion, three hundred twenty million, two hundred twenty-one thousand, one hundred twenty-two".