1331021111322 has 32 divisors (see below), whose sum is σ = 3099736501632. Its totient is φ = 373116429504.

The previous prime is 1331021111309. The next prime is 1331021111333. The reversal of 1331021111322 is 2231111201331.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 298969273 + ... + 298973724.

It is an arithmetic number, because the mean of its divisors is an integer number (96866765676).

Almost surely, 2^{1331021111322} is an apocalyptic number.

1331021111322 is an abundant number, since it is smaller than the sum of its proper divisors (1768715390310).

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

1331021111322 is a wasteful number, since it uses less digits than its factorization.

1331021111322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597943062.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1331021111322 its reverse (2231111201331), we get a palindrome (3562132312653).

Subtracting 1331021111322 from its reverse (2231111201331), we obtain a palindrome (900090090009).

The spelling of 1331021111322 in words is "one trillion, three hundred thirty-one billion, twenty-one million, one hundred eleven thousand, three hundred twenty-two".