2013221221010 has 16 divisors (see below), whose sum is σ = 3712183520472. Its totient is φ = 785647305600.

The previous prime is 2013221221007. The next prime is 2013221221049. The reversal of 2013221221010 is 101221223102.

It can be written as a sum of positive squares in 4 ways, for example, as 1712405170921 + 300816050089 = 1308589^2 + 548467^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2013221221010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2455147421 + ... + 2455148240.

Almost surely, 2^{2013221221010} is an apocalyptic number.

2013221221010 is a deficient number, since it is larger than the sum of its proper divisors (1698962299462).

2013221221010 is a wasteful number, since it uses less digits than its factorization.

2013221221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910295709.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2013221221010 its reverse (101221223102), we get a palindrome (2114442444112).

The spelling of 2013221221010 in words is "two trillion, thirteen billion, two hundred twenty-one million, two hundred twenty-one thousand, ten".