112220221021001 has 4 divisors (see below), whose sum is σ = 112637396564100. Its totient is φ = 111803045477904.

The previous prime is 112220221020911. The next prime is 112220221021003. The reversal of 112220221021001 is 100120122022211.

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 35007516391225 + 77212704629776 = 5916715^2 + 8787076^2 .

It is a cyclic number.

It is not a de Polignac number, because 112220221021001 - 2²⁶ = 112220153912137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112220221021003) 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, 208587771146 + ... + 208587771683.

It is an arithmetic number, because the mean of its divisors is an integer number (28159349141025).

Almost surely, 2^{112220221021001} is an apocalyptic number.

It is an amenable number.

112220221021001 is a deficient number, since it is larger than the sum of its proper divisors (417175543099).

112220221021001 is an equidigital number, since it uses as much as digits as its factorization.

112220221021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417175543098.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 112220221021001 its reverse (100120122022211), we get a palindrome (212340343043212).

The spelling of 112220221021001 in words is "one hundred twelve trillion, two hundred twenty billion, two hundred twenty-one million, twenty-one thousand, one".