121201010200 has 96 divisors (see below), whose sum is σ = 289735830720. Its totient is φ = 47122560000.

The previous prime is 121201010171. The next prime is 121201010263. The reversal of 121201010200 is 2010102121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2194930 + ... + 2249470.

It is an arithmetic number, because the mean of its divisors is an integer number (3018081570).

Almost surely, 2^121201010200 is an apocalyptic number.

121201010200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121201010200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144867915360).

121201010200 is an abundant number, since it is smaller than the sum of its proper divisors (168534820520).

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

121201010200 is a wasteful number, since it uses less digits than its factorization.

121201010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54869 (or 54860 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121201010200 its reverse (2010102121), we get a palindrome (123211112321).

The spelling of 121201010200 in words is "one hundred twenty-one billion, two hundred one million, ten thousand, two hundred".