1321211220332 has 24 divisors (see below), whose sum is σ = 2314037510400. Its totient is φ = 660057780096.

The previous prime is 1321211220281. The next prime is 1321211220347. The reversal of 1321211220332 is 2330221121231.

It is a junction number, because it is equal to n+sod(n) for n = 1321211220298 and 1321211220307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61358144 + ... + 61379672.

It is an arithmetic number, because the mean of its divisors is an integer number (96418229600).

Almost surely, 2^{1321211220332} is an apocalyptic number.

It is an amenable number.

1321211220332 is a deficient number, since it is larger than the sum of its proper divisors (992826290068).

1321211220332 is a wasteful number, since it uses less digits than its factorization.

1321211220332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33545 (or 33543 counting only the distinct ones).

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

Adding to 1321211220332 its reverse (2330221121231), we get a palindrome (3651432341563).

The spelling of 1321211220332 in words is "one trillion, three hundred twenty-one billion, two hundred eleven million, two hundred twenty thousand, three hundred thirty-two".