2221311210 has 32 divisors (see below), whose sum is σ = 5347276992. Its totient is φ = 590557440.

The previous prime is 2221311199. The next prime is 2221311229. The reversal of 2221311210 is 121131222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221311210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101919 + ... + 121778.

It is an arithmetic number, because the mean of its divisors is an integer number (167102406).

Almost surely, 2^2221311210 is an apocalyptic number.

2221311210 is an abundant number, since it is smaller than the sum of its proper divisors (3125965782).

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

2221311210 is a wasteful number, since it uses less digits than its factorization.

2221311210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224038.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2221311210 is about 47130.7883447752. The cubic root of 2221311210 is about 1304.7775314022. Note that the first 3 decimals are identical.

Adding to 2221311210 its reverse (121131222), we get a palindrome (2342442432).

The spelling of 2221311210 in words is "two billion, two hundred twenty-one million, three hundred eleven thousand, two hundred ten".