112100212121101 has 4 divisors (see below), whose sum is σ = 112499145260604. Its totient is φ = 111701278981600.

The previous prime is 112100212121087. The next prime is 112100212121119. The reversal of 112100212121101 is 101121212001211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65206820105476 + 46893392015625 = 8075074^2 + 6847875^2 .

It is a cyclic number.

It is not a de Polignac number, because 112100212121101 - 2³¹ = 112098064637453 is a prime.

It is a super-2 number, since 2×112100212121101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112100212121801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199466569330 + ... + 199466569891.

It is an arithmetic number, because the mean of its divisors is an integer number (28124786315151).

Almost surely, 2^{112100212121101} is an apocalyptic number.

It is an amenable number.

112100212121101 is a deficient number, since it is larger than the sum of its proper divisors (398933139503).

112100212121101 is an equidigital number, since it uses as much as digits as its factorization.

112100212121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398933139502.

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

Adding to 112100212121101 its reverse (101121212001211), we get a palindrome (213221424122312).

The spelling of 112100212121101 in words is "one hundred twelve trillion, one hundred billion, two hundred twelve million, one hundred twenty-one thousand, one hundred one".