100121200010120 has 64 divisors (see below), whose sum is σ = 226353410375040. Its totient is φ = 39856375641600.

The previous prime is 100121200010119. The next prime is 100121200010149. The reversal of 100121200010120 is 21010002121001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149754980 + ... + 150422060.

It is an arithmetic number, because the mean of its divisors is an integer number (3536772037110).

Almost surely, 2^{100121200010120} is an apocalyptic number.

100121200010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100121200010120 is an abundant number, since it is smaller than the sum of its proper divisors (126232210364920).

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

100121200010120 is a wasteful number, since it uses less digits than its factorization.

100121200010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685086 (or 685082 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100121200010120 its reverse (21010002121001), we get a palindrome (121131202131121).

The spelling of 100121200010120 in words is "one hundred trillion, one hundred twenty-one billion, two hundred million, ten thousand, one hundred twenty".