2221853387 has 16 divisors (see below), whose sum is σ = 2451660288. Its totient is φ = 2000587680.

The previous prime is 2221853351. The next prime is 2221853393. The reversal of 2221853387 is 7833581222.

2221853387 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 2221853387 - 2¹² = 2221849291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221853987) 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, 507068 + ... + 511430.

It is an arithmetic number, because the mean of its divisors is an integer number (153228768).

Almost surely, 2^2221853387 is an apocalyptic number.

2221853387 is a deficient number, since it is larger than the sum of its proper divisors (229806901).

2221853387 is a wasteful number, since it uses less digits than its factorization.

2221853387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330.

The product of its digits is 161280, while the sum is 41.

The square root of 2221853387 is about 47136.5398284600. The cubic root of 2221853387 is about 1304.8836793411.

The spelling of 2221853387 in words is "two billion, two hundred twenty-one million, eight hundred fifty-three thousand, three hundred eighty-seven".