121012200012 has 48 divisors (see below), whose sum is σ = 310382481024. Its totient is φ = 36390432000.

The previous prime is 121012199969. The next prime is 121012200031. The reversal of 121012200012 is 210002210121.

121012200012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3481789 + ... + 3516372.

It is an arithmetic number, because the mean of its divisors is an integer number (6466301688).

Almost surely, 2^121012200012 is an apocalyptic number.

121012200012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121012200012 is an abundant number, since it is smaller than the sum of its proper divisors (189370281012).

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

121012200012 is a wasteful number, since it uses less digits than its factorization.

121012200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6998310 (or 6998308 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121012200012 its reverse (210002210121), we get a palindrome (331014410133).

The spelling of 121012200012 in words is "one hundred twenty-one billion, twelve million, two hundred thousand, twelve".