100121100221200 has 120 divisors (see below), whose sum is σ = 254694629428992. Its totient is φ = 37692025128960.

The previous prime is 100121100221173. The next prime is 100121100221213. The reversal of 100121100221200 is 2122001121001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 746620557 + ... + 746754643.

Almost surely, 2^{100121100221200} is an apocalyptic number.

100121100221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100121100221200 is an abundant number, since it is smaller than the sum of its proper divisors (154573529207792).

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

100121100221200 is a wasteful number, since it uses less digits than its factorization.

100121100221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243929 (or 243918 counting only the distinct ones).

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

Adding to 100121100221200 its reverse (2122001121001), we get a palindrome (102243101342201).

The spelling of 100121100221200 in words is "one hundred trillion, one hundred twenty-one billion, one hundred million, two hundred twenty-one thousand, two hundred".