2005222122 has 16 divisors (see below), whose sum is σ = 4456049280. Its totient is φ = 668407356.

The previous prime is 2005222117. The next prime is 2005222123. The reversal of 2005222122 is 2212225002.

2005222122 is a `hidden beast` number, since 20 + 0 + 522 + 2 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2005222095 and 2005222104.

It is not an unprimeable number, because it can be changed into a prime (2005222123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18566818 + ... + 18566925.

It is an arithmetic number, because the mean of its divisors is an integer number (278503080).

Almost surely, 2^2005222122 is an apocalyptic number.

2005222122 is an abundant number, since it is smaller than the sum of its proper divisors (2450827158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2005222122 is a wasteful number, since it uses less digits than its factorization.

2005222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37133754 (or 37133748 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2005222122 is about 44779.7065868011. The cubic root of 2005222122 is about 1261.0166737727.

Adding to 2005222122 its reverse (2212225002), we get a palindrome (4217447124).

The spelling of 2005222122 in words is "two billion, five million, two hundred twenty-two thousand, one hundred twenty-two".