1331220332332 has 48 divisors (see below), whose sum is σ = 2652974198784. Its totient is φ = 578560752000.

The previous prime is 1331220332303. The next prime is 1331220332371. The reversal of 1331220332332 is 2332330221331.

It is a self number, because there is not a number n which added to its sum of digits gives 1331220332332.

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, 2290357 + ... + 2812147.

It is an arithmetic number, because the mean of its divisors is an integer number (55270295808).

Almost surely, 2^{1331220332332} is an apocalyptic number.

It is an amenable number.

1331220332332 is a deficient number, since it is larger than the sum of its proper divisors (1321753866452).

1331220332332 is a wasteful number, since it uses less digits than its factorization.

1331220332332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524350 (or 524348 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 1331220332332 its reverse (2332330221331), we get a palindrome (3663550553663).

The spelling of 1331220332332 in words is "one trillion, three hundred thirty-one billion, two hundred twenty million, three hundred thirty-two thousand, three hundred thirty-two".