2222021855 has 8 divisors (see below), whose sum is σ = 2731461264. Its totient is φ = 1734260800.

The previous prime is 2222021821. The next prime is 2222021911. The reversal of 2222021855 is 5581202222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2222021855 - 2²² = 2217827551 is a prime.

It is a super-2 number, since 2×2222021855² = 9874762248195282050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5419361 + ... + 5419770.

It is an arithmetic number, because the mean of its divisors is an integer number (341432658).

Almost surely, 2^2222021855 is an apocalyptic number.

2222021855 is a deficient number, since it is larger than the sum of its proper divisors (509439409).

2222021855 is a wasteful number, since it uses less digits than its factorization.

2222021855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10839177.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 2222021855 is about 47138.3268158725. The cubic root of 2222021855 is about 1304.9166586531.

The spelling of 2222021855 in words is "two billion, two hundred twenty-two million, twenty-one thousand, eight hundred fifty-five".