12221111013 has 8 divisors (see below), whose sum is σ = 16365972000. Its totient is φ = 8111828688.

The previous prime is 12221110987. The next prime is 12221111017. The reversal of 12221111013 is 31011112221.

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

It is not a de Polignac number, because 12221111013 - 2²¹ = 12219013861 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12221110983 and 12221111001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221111017) 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, 8893863 + ... + 8895236.

It is an arithmetic number, because the mean of its divisors is an integer number (2045746500).

Almost surely, 2^12221111013 is an apocalyptic number.

It is an amenable number.

12221111013 is a deficient number, since it is larger than the sum of its proper divisors (4144860987).

12221111013 is a wasteful number, since it uses less digits than its factorization.

12221111013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17789331.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 12221111013 its reverse (31011112221), we get a palindrome (43232223234).

The spelling of 12221111013 in words is "twelve billion, two hundred twenty-one million, one hundred eleven thousand, thirteen".