2005221162 has 32 divisors (see below), whose sum is σ = 4852973952. Its totient is φ = 539218944.

The previous prime is 2005221149. The next prime is 2005221181. The reversal of 2005221162 is 2611225002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 1403503 + ... + 1404930.

It is an arithmetic number, because the mean of its divisors is an integer number (151655436).

Almost surely, 2^2005221162 is an apocalyptic number.

2005221162 is an abundant number, since it is smaller than the sum of its proper divisors (2847752790).

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

2005221162 is a wasteful number, since it uses less digits than its factorization.

2005221162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808462.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2005221162 is about 44779.6958676586. The cubic root of 2005221162 is about 1261.0164725354.

Adding to 2005221162 its reverse (2611225002), we get a palindrome (4616446164).

It can be divided in two parts, 20052 and 21162, that added together give a palindrome (41214).

The spelling of 2005221162 in words is "two billion, five million, two hundred twenty-one thousand, one hundred sixty-two".