121012110100200 has 192 divisors, whose sum is σ = 410997358324800. Its totient is φ = 29210362009600.

The previous prime is 121012110100183. The next prime is 121012110100201. The reversal of 121012110100200 is 2001011210121.

121012110100200 is digitally balanced in base 4, 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 not an unprimeable number, because it can be changed into a prime (121012110100201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37808055 + ... + 40883654.

It is an arithmetic number, because the mean of its divisors is an integer number (2140611241275).

Almost surely, 2^{121012110100200} is an apocalyptic number.

121012110100200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121012110100200 is an abundant number, since it is smaller than the sum of its proper divisors (289985248224600).

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

121012110100200 is a wasteful number, since it uses less digits than its factorization.

121012110100200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78691972 (or 78691963 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121012110100200 its reverse (2001011210121), we get a palindrome (123013121310321).

The spelling of 121012110100200 in words is "one hundred twenty-one trillion, twelve billion, one hundred ten million, one hundred thousand, two hundred".