121220203300 has 108 divisors (see below), whose sum is σ = 322099644720. Its totient is φ = 39373750080.

The previous prime is 121220203289. The next prime is 121220203337. The reversal of 121220203300 is 3302022121.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 557922 + ... + 744121.

Almost surely, 2^121220203300 is an apocalyptic number.

121220203300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121220203300 is an abundant number, since it is smaller than the sum of its proper divisors (200879441420).

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

121220203300 is a wasteful number, since it uses less digits than its factorization.

121220203300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302090 (or 1302076 counting only the distinct ones).

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

Adding to 121220203300 its reverse (3302022121), we get a palindrome (124522225421).

The spelling of 121220203300 in words is "one hundred twenty-one billion, two hundred twenty million, two hundred three thousand, three hundred".