2221975087 has 4 divisors (see below), whose sum is σ = 2235607000. Its totient is φ = 2208343176.

The previous prime is 2221975061. The next prime is 2221975111. The reversal of 2221975087 is 7805791222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2221975087 - 2¹⁵ = 2221942319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221975027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6815712 + ... + 6816037.

It is an arithmetic number, because the mean of its divisors is an integer number (558901750).

Almost surely, 2^2221975087 is an apocalyptic number.

2221975087 is a deficient number, since it is larger than the sum of its proper divisors (13631913).

2221975087 is a wasteful number, since it uses less digits than its factorization.

2221975087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13631912.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 2221975087 is about 47137.8307413483. The cubic root of 2221975087 is about 1304.9075035120.

The spelling of 2221975087 in words is "two billion, two hundred twenty-one million, nine hundred seventy-five thousand, eighty-seven".