2221123221010 has 8 divisors (see below), whose sum is σ = 3998021797836. Its totient is φ = 888449288400.

The previous prime is 2221123220999. The next prime is 2221123221019. The reversal of 2221123221010 is 101223211222.

It can be written as a sum of positive squares in 2 ways, for example, as 2064385619209 + 156737601801 = 1436797^2 + 395901^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2221123221019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111056161041 + ... + 111056161060.

Almost surely, 2^{2221123221010} is an apocalyptic number.

2221123221010 is a deficient number, since it is larger than the sum of its proper divisors (1776898576826).

2221123221010 is a wasteful number, since it uses less digits than its factorization.

2221123221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222112322108.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2221123221010 its reverse (101223211222), we get a palindrome (2322346432232).

The spelling of 2221123221010 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-three million, two hundred twenty-one thousand, ten".