2221201023 has 16 divisors (see below), whose sum is σ = 3141283200. Its totient is φ = 1392150240.

The previous prime is 2221201013. The next prime is 2221201027. The reversal of 2221201023 is 3201021222.

It is a happy number.

It is not a de Polignac number, because 2221201023 - 2¹⁴ = 2221184639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221200993 and 2221201011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221201027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141268 + ... + 156201.

It is an arithmetic number, because the mean of its divisors is an integer number (196330200).

Almost surely, 2^2221201023 is an apocalyptic number.

2221201023 is a deficient number, since it is larger than the sum of its proper divisors (920082177).

2221201023 is a wasteful number, since it uses less digits than its factorization.

2221201023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297622.

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

The square root of 2221201023 is about 47129.6193810220. The cubic root of 2221201023 is about 1304.7559567727.

Adding to 2221201023 its reverse (3201021222), we get a palindrome (5422222245).

The spelling of 2221201023 in words is "two billion, two hundred twenty-one million, two hundred one thousand, twenty-three".