121200300012 has 36 divisors (see below), whose sum is σ = 310847054168. Its totient is φ = 36727363200.

The previous prime is 121200299963. The next prime is 121200300019. The reversal of 121200300012 is 210003002121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (121200300019) 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, 41734189 + ... + 41737092.

Almost surely, 2^121200300012 is an apocalyptic number.

121200300012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121200300012 is an abundant number, since it is smaller than the sum of its proper divisors (189646754156).

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

121200300012 is a wasteful number, since it uses less digits than its factorization.

121200300012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83471310 (or 83471297 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 121200300012 its reverse (210003002121), we get a palindrome (331203302133).

The spelling of 121200300012 in words is "one hundred twenty-one billion, two hundred million, three hundred thousand, twelve".