1320003222100 has 36 divisors (see below), whose sum is σ = 2956807224448. Its totient is φ = 510968988000.

The previous prime is 1320003222079. The next prime is 1320003222107. The reversal of 1320003222100 is 12223000231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320003222107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212900646 + ... + 212906845.

Almost surely, 2^{1320003222100} is an apocalyptic number.

1320003222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320003222100 is an abundant number, since it is smaller than the sum of its proper divisors (1636804002348).

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

1320003222100 is a wasteful number, since it uses less digits than its factorization.

1320003222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425807536 (or 425807529 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1320003222100 its reverse (12223000231), we get a palindrome (1332226222331).

The spelling of 1320003222100 in words is "one trillion, three hundred twenty billion, three million, two hundred twenty-two thousand, one hundred".