2221827655 has 16 divisors (see below), whose sum is σ = 2699244000. Its totient is φ = 1755564160.

The previous prime is 2221827611. The next prime is 2221827667. The reversal of 2221827655 is 5567281222.

It is not a de Polignac number, because 2221827655 - 2⁷ = 2221827527 is a prime.

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, 125025 + ... + 141685.

It is an arithmetic number, because the mean of its divisors is an integer number (168702750).

Almost surely, 2^2221827655 is an apocalyptic number.

2221827655 is a deficient number, since it is larger than the sum of its proper divisors (477416345).

2221827655 is a wasteful number, since it uses less digits than its factorization.

2221827655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16994.

The product of its digits is 134400, while the sum is 40.

The square root of 2221827655 is about 47136.2668759417. The cubic root of 2221827655 is about 1304.8786418955.

The spelling of 2221827655 in words is "two billion, two hundred twenty-one million, eight hundred twenty-seven thousand, six hundred fifty-five".