2201112021 has 4 divisors (see below), whose sum is σ = 2934816032. Its totient is φ = 1467408012.

The previous prime is 2201112013. The next prime is 2201112041. The reversal of 2201112021 is 1202111022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2201112021 - 2³ = 2201112013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201111988 and 2201112006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201112041) 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, 366852001 + ... + 366852006.

It is an arithmetic number, because the mean of its divisors is an integer number (733704008).

Almost surely, 2^2201112021 is an apocalyptic number.

It is an amenable number.

2201112021 is a deficient number, since it is larger than the sum of its proper divisors (733704011).

2201112021 is an equidigital number, since it uses as much as digits as its factorization.

2201112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733704010.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2201112021 is about 46916.0102843368. The cubic root of 2201112021 is about 1300.8105440314.

Adding to 2201112021 its reverse (1202111022), we get a palindrome (3403223043).

Subtracting from 2201112021 its reverse (1202111022), we obtain a palindrome (999000999).

The spelling of 2201112021 in words is "two billion, two hundred one million, one hundred twelve thousand, twenty-one".