112012100100021 has 16 divisors (see below), whose sum is σ = 162936663482880. Its totient is φ = 67881966094320.

The previous prime is 112012100100011. The next prime is 112012100100203. The reversal of 112012100100021 is 120001001210211.

It is not a de Polignac number, because 112012100100021 - 2⁵ = 112012100099989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112012100100011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103332105 + ... + 104410478.

It is an arithmetic number, because the mean of its divisors is an integer number (10183541467680).

Almost surely, 2^{112012100100021} is an apocalyptic number.

112012100100021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112012100100021 is a deficient number, since it is larger than the sum of its proper divisors (50924563382859).

112012100100021 is a wasteful number, since it uses less digits than its factorization.

112012100100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207758936.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 112012100100021 its reverse (120001001210211), we get a palindrome (232013101310232).

The spelling of 112012100100021 in words is "one hundred twelve trillion, twelve billion, one hundred million, one hundred thousand, twenty-one".