112001210100 has 108 divisors (see below), whose sum is σ = 378066346476. Its totient is φ = 27569525760.

The previous prime is 112001210081. The next prime is 112001210131. The reversal of 112001210100 is 1012100211.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 18490016484 + 93511193616 = 135978^2 + 305796^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4774677 + ... + 4798076.

Almost surely, 2^112001210100 is an apocalyptic number.

112001210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112001210100 is an abundant number, since it is smaller than the sum of its proper divisors (266065136376).

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

112001210100 is a wasteful number, since it uses less digits than its factorization.

112001210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9572786 (or 9572776 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 112001210100 its reverse (1012100211), we get a palindrome (113013310311).

The spelling of 112001210100 in words is "one hundred twelve billion, one million, two hundred ten thousand, one hundred".