2221122855 has 16 divisors (see below), whose sum is σ = 4061481984. Its totient is φ = 1015370400.

The previous prime is 2221122833. The next prime is 2221122863. The reversal of 2221122855 is 5582211222.

It is not a de Polignac number, because 2221122855 - 2⁵ = 2221122823 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, 10576671 + ... + 10576880.

It is an arithmetic number, because the mean of its divisors is an integer number (253842624).

Almost surely, 2^2221122855 is an apocalyptic number.

2221122855 is a deficient number, since it is larger than the sum of its proper divisors (1840359129).

2221122855 is a wasteful number, since it uses less digits than its factorization.

2221122855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21153566.

The product of its digits is 6400, while the sum is 30.

The square root of 2221122855 is about 47128.7900863156. The cubic root of 2221122855 is about 1304.7406510351.

The spelling of 2221122855 in words is "two billion, two hundred twenty-one million, one hundred twenty-two thousand, eight hundred fifty-five".