121020211200012 has 24 divisors (see below), whose sum is σ = 294657905531136. Its totient is φ = 38586154295568.

The previous prime is 121020211199999. The next prime is 121020211200023. The reversal of 121020211200012 is 210002112020121.

It is a junction number, because it is equal to n+sod(n) for n = 121020211199964 and 121020211200000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219239512768 + ... + 219239513319.

It is an arithmetic number, because the mean of its divisors is an integer number (12277412730464).

Almost surely, 2^{121020211200012} is an apocalyptic number.

121020211200012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121020211200012 is an abundant number, since it is smaller than the sum of its proper divisors (173637694331124).

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

121020211200012 is a wasteful number, since it uses less digits than its factorization.

121020211200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438479026117 (or 438479026115 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121020211200012 its reverse (210002112020121), we get a palindrome (331022323220133).

The spelling of 121020211200012 in words is "one hundred twenty-one trillion, twenty billion, two hundred eleven million, two hundred thousand, twelve".