12221112010 has 8 divisors (see below), whose sum is σ = 21998001636. Its totient is φ = 4888444800.

The previous prime is 12221111993. The next prime is 12221112011. The reversal of 12221112010 is 1021112221.

It can be written as a sum of positive squares in 2 ways, for example, as 12159693441 + 61418569 = 110271^2 + 7837^2 .

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 (12221112011) 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, 611055591 + ... + 611055610.

Almost surely, 2^12221112010 is an apocalyptic number.

12221112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221112010 is a deficient number, since it is larger than the sum of its proper divisors (9776889626).

12221112010 is a wasteful number, since it uses less digits than its factorization.

12221112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222111208.

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

Adding to 12221112010 its reverse (1021112221), we get a palindrome (13242224231).

The spelling of 12221112010 in words is "twelve billion, two hundred twenty-one million, one hundred twelve thousand, ten".