1331320222132 has 6 divisors (see below), whose sum is σ = 2329810388738. Its totient is φ = 665660111064.

The previous prime is 1331320222121. The next prime is 1331320222151. The reversal of 1331320222132 is 2312220231331.

It can be written as a sum of positive squares in only one way, i.e., 1222890952336 + 108429269796 = 1105844^2 + 329286^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1331320222097 and 1331320222106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166415027763 + ... + 166415027770.

Almost surely, 2^{1331320222132} is an apocalyptic number.

It is an amenable number.

1331320222132 is a deficient number, since it is larger than the sum of its proper divisors (998490166606).

1331320222132 is a wasteful number, since it uses less digits than its factorization.

1331320222132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332830055537 (or 332830055535 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1331320222132 its reverse (2312220231331), we get a palindrome (3643540453463).

The spelling of 1331320222132 in words is "one trillion, three hundred thirty-one billion, three hundred twenty million, two hundred twenty-two thousand, one hundred thirty-two".