2001872022 has 16 divisors (see below), whose sum is σ = 4177820160. Its totient is φ = 638277992.

The previous prime is 2001872021. The next prime is 2001872057. The reversal of 2001872022 is 2202781002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001871983 and 2001872001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001872021) 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, 7253022 + ... + 7253297.

It is an arithmetic number, because the mean of its divisors is an integer number (261113760).

Almost surely, 2^2001872022 is an apocalyptic number.

2001872022 is an abundant number, since it is smaller than the sum of its proper divisors (2175948138).

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

2001872022 is a wasteful number, since it uses less digits than its factorization.

2001872022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14506347.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 2001872022 is about 44742.2844968828. The cubic root of 2001872022 is about 1260.3140272973.

The spelling of 2001872022 in words is "two billion, one million, eight hundred seventy-two thousand, twenty-two".