121220112231300 has 36 divisors (see below), whose sum is σ = 350730191390096. Its totient is φ = 32325363261600.

The previous prime is 121220112231263. The next prime is 121220112231307. The reversal of 121220112231300 is 3132211022121.

It is not an unprimeable number, because it can be changed into a prime (121220112231307) 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, 202033520086 + ... + 202033520685.

Almost surely, 2^{121220112231300} is an apocalyptic number.

121220112231300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121220112231300 is an abundant number, since it is smaller than the sum of its proper divisors (229510079158796).

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

121220112231300 is a wasteful number, since it uses less digits than its factorization.

121220112231300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404067040788 (or 404067040781 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121220112231300 its reverse (3132211022121), we get a palindrome (124352323253421).

The spelling of 121220112231300 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twelve million, two hundred thirty-one thousand, three hundred".