100011200121100 has 36 divisors (see below), whose sum is σ = 217455764221584. Its totient is φ = 39924948258880.

The previous prime is 100011200121017. The next prime is 100011200121109. The reversal of 100011200121100 is 1121002110001.

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

It is not an unprimeable number, because it can be changed into a prime (100011200121109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 994096819 + ... + 994197418.

It is an arithmetic number, because the mean of its divisors is an integer number (6040437895044).

Almost surely, 2^{100011200121100} is an apocalyptic number.

100011200121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100011200121100 is an abundant number, since it is smaller than the sum of its proper divisors (117444564100484).

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

100011200121100 is a wasteful number, since it uses less digits than its factorization.

100011200121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988294754 (or 1988294747 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 100011200121100 its reverse (1121002110001), we get a palindrome (101132202231101).

The spelling of 100011200121100 in words is "one hundred trillion, eleven billion, two hundred million, one hundred twenty-one thousand, one hundred".