2221865035 has 16 divisors (see below), whose sum is σ = 3022457760. Its totient is φ = 1554405120.

The previous prime is 2221865017. The next prime is 2221865039. The reversal of 2221865035 is 5305681222.

2221865035 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 2221865035 - 2⁵ = 2221865003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221865039) 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, 898306 + ... + 900775.

It is an arithmetic number, because the mean of its divisors is an integer number (188903610).

Almost surely, 2^2221865035 is an apocalyptic number.

2221865035 is a deficient number, since it is larger than the sum of its proper divisors (800592725).

2221865035 is a wasteful number, since it uses less digits than its factorization.

2221865035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799118.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 2221865035 is about 47136.6633842490. The cubic root of 2221865035 is about 1304.8859596084.

The spelling of 2221865035 in words is "two billion, two hundred twenty-one million, eight hundred sixty-five thousand, thirty-five".