100112121001000 has 32 divisors (see below), whose sum is σ = 234262363144680. Its totient is φ = 40044848400000.

The previous prime is 100112121000989. The next prime is 100112121001063. The reversal of 100112121001000 is 100121211001.

It can be written as a sum of positive squares in 4 ways, for example, as 43224655106116 + 56887465894884 = 6574546^2 + 7542378^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50056059501 + ... + 50056061500.

Almost surely, 2^{100112121001000} is an apocalyptic number.

100112121001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100112121001000 is an abundant number, since it is smaller than the sum of its proper divisors (134150242143680).

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

100112121001000 is a wasteful number, since it uses less digits than its factorization.

100112121001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100112121022 (or 100112121008 counting only the distinct ones).

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

Adding to 100112121001000 its reverse (100121211001), we get a palindrome (100212242212001).

The spelling of 100112121001000 in words is "one hundred trillion, one hundred twelve billion, one hundred twenty-one million, one thousand".