2121102210 has 16 divisors (see below), whose sum is σ = 5090645376. Its totient is φ = 565627248.

The previous prime is 2121102197. The next prime is 2121102227. The reversal of 2121102210 is 122011212.

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, 35351674 + ... + 35351733.

It is an arithmetic number, because the mean of its divisors is an integer number (318165336).

Almost surely, 2^2121102210 is an apocalyptic number.

2121102210 is an abundant number, since it is smaller than the sum of its proper divisors (2969543166).

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

2121102210 is a wasteful number, since it uses less digits than its factorization.

2121102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70703417.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2121102210 is about 46055.4254132996. The cubic root of 2121102210 is about 1284.8542502508.

Adding to 2121102210 its reverse (122011212), we get a palindrome (2243113422).

The spelling of 2121102210 in words is "two billion, one hundred twenty-one million, one hundred two thousand, two hundred ten".