100012112321200 has 30 divisors (see below), whose sum is σ = 240279099852644. Its totient is φ = 40004844928320.

The previous prime is 100012112321189. The next prime is 100012112321201. The reversal of 100012112321200 is 2123211210001.

It is a super-2 number, since 2×100012112321200² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (100012112321201) 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, 125015140002 + ... + 125015140801.

Almost surely, 2^{100012112321200} is an apocalyptic number.

100012112321200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100012112321200 is an abundant number, since it is smaller than the sum of its proper divisors (140266987531444).

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

100012112321200 is a wasteful number, since it uses less digits than its factorization.

100012112321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250030280821 (or 250030280810 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 100012112321200 its reverse (2123211210001), we get a palindrome (102135323531201).

The spelling of 100012112321200 in words is "one hundred trillion, twelve billion, one hundred twelve million, three hundred twenty-one thousand, two hundred".