2121002210 has 32 divisors (see below), whose sum is σ = 3892190400. Its totient is φ = 831942720.

The previous prime is 2121002207. The next prime is 2121002249. The reversal of 2121002210 is 122001212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2121002191 and 2121002200.

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, 244121 + ... + 252659.

It is an arithmetic number, because the mean of its divisors is an integer number (121630950).

Almost surely, 2^2121002210 is an apocalyptic number.

2121002210 is a deficient number, since it is larger than the sum of its proper divisors (1771188190).

2121002210 is a wasteful number, since it uses less digits than its factorization.

2121002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9026.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2121002210 is about 46054.3397520798. The cubic root of 2121002210 is about 1284.8340583205.

Adding to 2121002210 its reverse (122001212), we get a palindrome (2243003422).

It can be divided in two parts, 2121002 and 210, that added together give a palindrome (2121212).

The spelling of 2121002210 in words is "two billion, one hundred twenty-one million, two thousand, two hundred ten".