2221023210 has 64 divisors (see below), whose sum is σ = 6288482304. Its totient is φ = 491284800.

The previous prime is 2221023197. The next prime is 2221023227. The reversal of 2221023210 is 123201222.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2221023210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164076 + ... + 177095.

It is an arithmetic number, because the mean of its divisors is an integer number (98257536).

Almost surely, 2^2221023210 is an apocalyptic number.

2221023210 is an abundant number, since it is smaller than the sum of its proper divisors (4067459094).

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

2221023210 is a wasteful number, since it uses less digits than its factorization.

2221023210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341219.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2221023210 is about 47127.7329181025. The cubic root of 2221023210 is about 1304.7211394585.

Adding to 2221023210 its reverse (123201222), we get a palindrome (2344224432).

The spelling of 2221023210 in words is "two billion, two hundred twenty-one million, twenty-three thousand, two hundred ten".