2221120023 has 16 divisors (see below), whose sum is σ = 3236852736. Its totient is φ = 1348686720.

The previous prime is 2221120001. The next prime is 2221120043. The reversal of 2221120023 is 3200211222.

It is a happy number.

It is not a de Polignac number, because 2221120023 - 2⁵ = 2221119991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221119984 and 2221120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221120043) 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, 700861 + ... + 704022.

It is an arithmetic number, because the mean of its divisors is an integer number (202303296).

Almost surely, 2^2221120023 is an apocalyptic number.

2221120023 is a deficient number, since it is larger than the sum of its proper divisors (1015732713).

2221120023 is a wasteful number, since it uses less digits than its factorization.

2221120023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404934.

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

The square root of 2221120023 is about 47128.7600409771. The cubic root of 2221120023 is about 1304.7400965067.

Adding to 2221120023 its reverse (3200211222), we get a palindrome (5421331245).

The spelling of 2221120023 in words is "two billion, two hundred twenty-one million, one hundred twenty thousand, twenty-three".