2001020222 has 16 divisors (see below), whose sum is σ = 3086793600. Its totient is φ = 972323352.

The previous prime is 2001020183. The next prime is 2001020227. The reversal of 2001020222 is 2220201002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001020227) by changing a digit.

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, 41348 + ... + 75575.

It is an arithmetic number, because the mean of its divisors is an integer number (192924600).

Almost surely, 2^2001020222 is an apocalyptic number.

2001020222 is a deficient number, since it is larger than the sum of its proper divisors (1085773378).

2001020222 is a wasteful number, since it uses less digits than its factorization.

2001020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117167.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2001020222 is about 44732.7645244512. The cubic root of 2001020222 is about 1260.1352466732.

Adding to 2001020222 its reverse (2220201002), we get a palindrome (4221221224).

The spelling of 2001020222 in words is "two billion, one million, twenty thousand, two hundred twenty-two".