210121012112200 has 192 divisors, whose sum is σ = 591005972304000. Its totient is φ = 67939688355840.

The previous prime is 210121012112197. The next prime is 210121012112203. The reversal of 210121012112200 is 2211210121012.

210121012112200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (210121012112197) and next prime (210121012112203).

It is not an unprimeable number, because it can be changed into a prime (210121012112203) 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, 58433205 + ... + 61924804.

It is an arithmetic number, because the mean of its divisors is an integer number (3078156105750).

Almost surely, 2^{210121012112200} is an apocalyptic number.

210121012112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210121012112200 is an abundant number, since it is smaller than the sum of its proper divisors (380884960191800).

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

210121012112200 is a wasteful number, since it uses less digits than its factorization.

210121012112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120358104 (or 120358095 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210121012112200 its reverse (2211210121012), we get a palindrome (212332222233212).

The spelling of 210121012112200 in words is "two hundred ten trillion, one hundred twenty-one billion, twelve million, one hundred twelve thousand, two hundred".