2201221123 has 8 divisors (see below), whose sum is σ = 2275782656. Its totient is φ = 2126881800.

The previous prime is 2201221103. The next prime is 2201221151. The reversal of 2201221123 is 3211221022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2201221123 - 2⁵ = 2201221091 is a prime.

It is a super-2 number, since 2×2201221123² = 9690748864682762258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201221097 and 2201221106.

It is not an unprimeable number, because it can be changed into a prime (2201221103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35283 + ... + 75148.

It is an arithmetic number, because the mean of its divisors is an integer number (284472832).

Almost surely, 2^2201221123 is an apocalyptic number.

2201221123 is a deficient number, since it is larger than the sum of its proper divisors (74561533).

2201221123 is a wasteful number, since it uses less digits than its factorization.

2201221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111105.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2201221123 is about 46917.1730073328. The cubic root of 2201221123 is about 1300.8320359994.

Adding to 2201221123 its reverse (3211221022), we get a palindrome (5412442145).

The spelling of 2201221123 in words is "two billion, two hundred one million, two hundred twenty-one thousand, one hundred twenty-three".