2001102210 has 48 divisors (see below), whose sum is σ = 5229057600. Its totient is φ = 530940960.

The previous prime is 2001102179. The next prime is 2001102227. The reversal of 2001102210 is 122011002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2001102192 and 2001102201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37956 + ... + 73775.

It is an arithmetic number, because the mean of its divisors is an integer number (108938700).

Almost surely, 2^2001102210 is an apocalyptic number.

2001102210 is an abundant number, since it is smaller than the sum of its proper divisors (3227955390).

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

2001102210 is a wasteful number, since it uses less digits than its factorization.

2001102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111943 (or 111940 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2001102210 is about 44733.6809350628. The cubic root of 2001102210 is about 1260.1524569869.

Adding to 2001102210 its reverse (122011002), we get a palindrome (2123113212).

The spelling of 2001102210 in words is "two billion, one million, one hundred two thousand, two hundred ten".