100121220110200 has 24 divisors (see below), whose sum is σ = 232781836756680. Its totient is φ = 40048488044000.

The previous prime is 100121220110183. The next prime is 100121220110207. The reversal of 100121220110200 is 2011022121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121220110207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250303050076 + ... + 250303050475.

It is an arithmetic number, because the mean of its divisors is an integer number (9699243198195).

Almost surely, 2^{100121220110200} is an apocalyptic number.

100121220110200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100121220110200 is an abundant number, since it is smaller than the sum of its proper divisors (132660616646480).

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

100121220110200 is a wasteful number, since it uses less digits than its factorization.

100121220110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500606100567 (or 500606100558 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100121220110200 its reverse (2011022121001), we get a palindrome (102132242231201).

The spelling of 100121220110200 in words is "one hundred trillion, one hundred twenty-one billion, two hundred twenty million, one hundred ten thousand, two hundred".