2102221210 has 16 divisors (see below), whose sum is σ = 3785170176. Its totient is φ = 840628048.

The previous prime is 2102221157. The next prime is 2102221213. The reversal of 2102221210 is 121222012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2102221213) 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, 3219 + ... + 64921.

It is an arithmetic number, because the mean of its divisors is an integer number (236573136).

Almost surely, 2^2102221210 is an apocalyptic number.

2102221210 is a deficient number, since it is larger than the sum of its proper divisors (1682948966).

2102221210 is a wasteful number, since it uses less digits than its factorization.

2102221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65117.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2102221210 is about 45849.9859323861. The cubic root of 2102221210 is about 1281.0305035533.

Adding to 2102221210 its reverse (121222012), we get a palindrome (2223443222).

The spelling of 2102221210 in words is "two billion, one hundred two million, two hundred twenty-one thousand, two hundred ten".