2221125015 has 16 divisors (see below), whose sum is σ = 3554460000. Its totient is φ = 1184380032.

The previous prime is 2221124989. The next prime is 2221125077. The reversal of 2221125015 is 5105211222.

2221125015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2221125015 - 2⁶ = 2221124951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221124982 and 2221125000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100161 + ... + 120309.

It is an arithmetic number, because the mean of its divisors is an integer number (222153750).

Almost surely, 2^2221125015 is an apocalyptic number.

2221125015 is a deficient number, since it is larger than the sum of its proper divisors (1333334985).

2221125015 is a wasteful number, since it uses less digits than its factorization.

2221125015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27506.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2221125015 is about 47128.8130022389. The cubic root of 2221125015 is about 1304.7410739802.

Adding to 2221125015 its reverse (5105211222), we get a palindrome (7326336237).

The spelling of 2221125015 in words is "two billion, two hundred twenty-one million, one hundred twenty-five thousand, fifteen".