1321220301332 has 24 divisors (see below), whose sum is σ = 2314460221920. Its totient is φ = 659946288800.

The previous prime is 1321220301283. The next prime is 1321220301347. The reversal of 1321220301332 is 2331030221231.

It is a junction number, because it is equal to n+sod(n) for n = 1321220301298 and 1321220301307.

It is a congruent number.

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, 16464707 + ... + 16544757.

It is an arithmetic number, because the mean of its divisors is an integer number (96435842580).

Almost surely, 2^{1321220301332} is an apocalyptic number.

It is an amenable number.

1321220301332 is a deficient number, since it is larger than the sum of its proper divisors (993239920588).

1321220301332 is a wasteful number, since it uses less digits than its factorization.

1321220301332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84151 (or 84149 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1321220301332 its reverse (2331030221231), we get a palindrome (3652250522563).

The spelling of 1321220301332 in words is "one trillion, three hundred twenty-one billion, two hundred twenty million, three hundred one thousand, three hundred thirty-two".