121220322300 has 216 divisors, whose sum is σ = 473714596992. Its totient is φ = 25188624000.

The previous prime is 121220322257. The next prime is 121220322319. The reversal of 121220322300 is 3223022121.

121220322300 is a `hidden beast` number, since 1 + 21 + 2 + 20 + 322 + 300 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 805306 + ... + 943905.

Almost surely, 2^121220322300 is an apocalyptic number.

121220322300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121220322300 is an abundant number, since it is smaller than the sum of its proper divisors (352494274692).

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

121220322300 is a wasteful number, since it uses less digits than its factorization.

121220322300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749249 (or 1749239 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 121220322300 its reverse (3223022121), we get a palindrome (124443344421).

The spelling of 121220322300 in words is "one hundred twenty-one billion, two hundred twenty million, three hundred twenty-two thousand, three hundred".