2201221023 has 16 divisors (see below), whose sum is σ = 2999771136. Its totient is φ = 1435402080.

The previous prime is 2201221019. The next prime is 2201221027. The reversal of 2201221023 is 3201221022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2201221019) and next prime (2201221027).

It is not a de Polignac number, because 2201221023 - 2² = 2201221019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201220993 and 2201221011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201221027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13636 + ... + 67737.

It is an arithmetic number, because the mean of its divisors is an integer number (187485696).

Almost surely, 2^2201221023 is an apocalyptic number.

2201221023 is a deficient number, since it is larger than the sum of its proper divisors (798550113).

2201221023 is a wasteful number, since it uses less digits than its factorization.

2201221023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81574.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2201221023 is about 46917.1719416250. The cubic root of 2201221023 is about 1300.8320163007.

Adding to 2201221023 its reverse (3201221022), we get a palindrome (5402442045).

Subtracting 2201221023 from its reverse (3201221022), we obtain a palindrome (999999999).

The spelling of 2201221023 in words is "two billion, two hundred one million, two hundred twenty-one thousand, twenty-three".