112121210211 has 4 divisors (see below), whose sum is σ = 149494946952. Its totient is φ = 74747473472.

The previous prime is 112121210063. The next prime is 112121210239. The reversal of 112121210211 is 112012121211.

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 112121210211 - 2²¹ = 112119113059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112121215211) 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, 18686868366 + ... + 18686868371.

It is an arithmetic number, because the mean of its divisors is an integer number (37373736738).

Almost surely, 2^112121210211 is an apocalyptic number.

112121210211 is a deficient number, since it is larger than the sum of its proper divisors (37373736741).

112121210211 is an equidigital number, since it uses as much as digits as its factorization.

112121210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37373736740.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 112121210211 its reverse (112012121211), we get a palindrome (224133331422).

The spelling of 112121210211 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred ten thousand, two hundred eleven".