12221211010111 has 8 divisors (see below), whose sum is σ = 12224055877344. Its totient is φ = 12218366415360.

The previous prime is 12221211010103. The next prime is 12221211010159. The reversal of 12221211010111 is 11101011212221.

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

It is a cyclic number.

It is not a de Polignac number, because 12221211010111 - 2³ = 12221211010103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221211040111) 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, 109289550 + ... + 109401316.

It is an arithmetic number, because the mean of its divisors is an integer number (1528006984668).

Almost surely, 2^{12221211010111} is an apocalyptic number.

12221211010111 is a deficient number, since it is larger than the sum of its proper divisors (2844867233).

12221211010111 is a wasteful number, since it uses less digits than its factorization.

12221211010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136241.

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

Adding to 12221211010111 its reverse (11101011212221), we get a palindrome (23322222222332).

It can be divided in two parts, 122212110 and 10111, that added together give a palindrome (122222221).

The spelling of 12221211010111 in words is "twelve trillion, two hundred twenty-one billion, two hundred eleven million, ten thousand, one hundred eleven".