112121100211 has 4 divisors (see below), whose sum is σ = 112122421272. Its totient is φ = 112119779152.

The previous prime is 112121100209. The next prime is 112121100251. The reversal of 112121100211 is 112001121211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 112121100211 - 2¹ = 112121100209 is a prime.

It is a super-2 number, since 2×112121100211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112121100191 and 112121100200.

It is not an unprimeable number, because it can be changed into a prime (112121100251) 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, 523786 + ... + 706111.

It is an arithmetic number, because the mean of its divisors is an integer number (28030605318).

Almost surely, 2^112121100211 is an apocalyptic number.

112121100211 is a deficient number, since it is larger than the sum of its proper divisors (1321061).

112121100211 is an equidigital number, since it uses as much as digits as its factorization.

112121100211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321060.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 112121100211 its reverse (112001121211), we get a palindrome (224122221422).

The spelling of 112121100211 in words is "one hundred twelve billion, one hundred twenty-one million, one hundred thousand, two hundred eleven".