2101222110 has 32 divisors (see below), whose sum is σ = 5430852000. Its totient is φ = 517223808.

The previous prime is 2101222087. The next prime is 2101222111. The reversal of 2101222110 is 112221012.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101222111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2693485 + ... + 2694264.

It is an arithmetic number, because the mean of its divisors is an integer number (169714125).

Almost surely, 2^2101222110 is an apocalyptic number.

2101222110 is an abundant number, since it is smaller than the sum of its proper divisors (3329629890).

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

2101222110 is a wasteful number, since it uses less digits than its factorization.

2101222110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5387772.

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

The square root of 2101222110 is about 45839.0893234148. The cubic root of 2101222110 is about 1280.8275308783.

Adding to 2101222110 its reverse (112221012), we get a palindrome (2213443122).

The spelling of 2101222110 in words is "two billion, one hundred one million, two hundred twenty-two thousand, one hundred ten".