112111022120221 has 4 divisors (see below), whose sum is σ = 113103155059452. Its totient is φ = 111118889180992.

The previous prime is 112111022120203. The next prime is 112111022120261. The reversal of 112111022120221 is 122021220111211.

It is a happy number.

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 3083781844900 + 109027240275321 = 1756070^2 + 10441611^2 .

It is a cyclic number.

It is not a de Polignac number, because 112111022120221 - 2⁵ = 112111022120189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111022120261) 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, 496066469446 + ... + 496066469671.

It is an arithmetic number, because the mean of its divisors is an integer number (28275788764863).

Almost surely, 2^{112111022120221} is an apocalyptic number.

It is an amenable number.

112111022120221 is a deficient number, since it is larger than the sum of its proper divisors (992132939231).

112111022120221 is an equidigital number, since it uses as much as digits as its factorization.

112111022120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992132939230.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 112111022120221 its reverse (122021220111211), we get a palindrome (234132242231432).

The spelling of 112111022120221 in words is "one hundred twelve trillion, one hundred eleven billion, twenty-two million, one hundred twenty thousand, two hundred twenty-one".