12211221010 has 32 divisors (see below), whose sum is σ = 22319346240. Its totient is φ = 4809195072.

The previous prime is 12211220977. The next prime is 12211221031. The reversal of 12211221010 is 1012211221.

12211221010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12211221010² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2019712 + ... + 2025748.

It is an arithmetic number, because the mean of its divisors is an integer number (697479570).

Almost surely, 2^12211221010 is an apocalyptic number.

12211221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211221010 is a deficient number, since it is larger than the sum of its proper divisors (10108125230).

12211221010 is a wasteful number, since it uses less digits than its factorization.

12211221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9130.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12211221010 its reverse (1012211221), we get a palindrome (13223432231).

The spelling of 12211221010 in words is "twelve billion, two hundred eleven million, two hundred twenty-one thousand, ten".