2001022010 has 16 divisors (see below), whose sum is σ = 3878904456. Its totient is φ = 738838848.

The previous prime is 2001021989. The next prime is 2001022061. The reversal of 2001022010 is 102201002.

It can be written as a sum of positive squares in 4 ways, for example, as 1233344161 + 767677849 = 35119^2 + 27707^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7696109 + ... + 7696368.

Almost surely, 2^2001022010 is an apocalyptic number.

2001022010 is a deficient number, since it is larger than the sum of its proper divisors (1877882446).

2001022010 is a wasteful number, since it uses less digits than its factorization.

2001022010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15392497.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 2001022010 is about 44732.7845097977. The cubic root of 2001022010 is about 1260.1356220019.

Adding to 2001022010 its reverse (102201002), we get a palindrome (2103223012).

The spelling of 2001022010 in words is "two billion, one million, twenty-two thousand, ten".