1331221330122 has 32 divisors (see below), whose sum is σ = 2822417136000. Its totient is φ = 417140256768.

The previous prime is 1331221330097. The next prime is 1331221330123. The reversal of 1331221330122 is 2210331221331.

It is a junction number, because it is equal to n+sod(n) for n = 1331221330092 and 1331221330101.

It is not an unprimeable number, because it can be changed into a prime (1331221330123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7692247 + ... + 7863402.

It is an arithmetic number, because the mean of its divisors is an integer number (88200535500).

Almost surely, 2^{1331221330122} is an apocalyptic number.

1331221330122 is an abundant number, since it is smaller than the sum of its proper divisors (1491195805878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331221330122 is a wasteful number, since it uses less digits than its factorization.

1331221330122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15556510.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1331221330122 its reverse (2210331221331), we get a palindrome (3541552551453).

The spelling of 1331221330122 in words is "one trillion, three hundred thirty-one billion, two hundred twenty-one million, three hundred thirty thousand, one hundred twenty-two".