121220113013300 has 72 divisors (see below), whose sum is σ = 303544578320256. Its totient is φ = 41157674962560.

The previous prime is 121220113013299. The next prime is 121220113013371. The reversal of 121220113013300 is 3310311022121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 840566687 + ... + 840710886.

Almost surely, 2^{121220113013300} is an apocalyptic number.

121220113013300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121220113013300 is an abundant number, since it is smaller than the sum of its proper divisors (182324465306956).

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

121220113013300 is a wasteful number, since it uses less digits than its factorization.

121220113013300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681277697 (or 1681277690 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121220113013300 its reverse (3310311022121), we get a palindrome (124530424035421).

The spelling of 121220113013300 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred thirteen million, thirteen thousand, three hundred".