12212221011 has 8 divisors (see below), whose sum is σ = 16283770320. Its totient is φ = 8141076192.

The previous prime is 12212220989. The next prime is 12212221039. The reversal of 12212221011 is 11012221221.

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

It is not a de Polignac number, because 12212221011 - 2²² = 12208026707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212231011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21780 + ... + 157793.

It is an arithmetic number, because the mean of its divisors is an integer number (2035471290).

Almost surely, 2^12212221011 is an apocalyptic number.

12212221011 is a deficient number, since it is larger than the sum of its proper divisors (4071549309).

12212221011 is a wasteful number, since it uses less digits than its factorization.

12212221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202245.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12212221011 its reverse (11012221221), we get a palindrome (23224442232).

The spelling of 12212221011 in words is "twelve billion, two hundred twelve million, two hundred twenty-one thousand, eleven".