12122201021111 has 8 divisors (see below), whose sum is σ = 12209465583744. Its totient is φ = 12035028367800.

The previous prime is 12122201021101. The next prime is 12122201021129. The reversal of 12122201021111 is 11112010222121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12122201021111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12122201021111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122201021101) 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, 22712585 + ... + 23240178.

It is an arithmetic number, because the mean of its divisors is an integer number (1526183197968).

Almost surely, 2^{12122201021111} is an apocalyptic number.

12122201021111 is a deficient number, since it is larger than the sum of its proper divisors (87264562633).

12122201021111 is a wasteful number, since it uses less digits than its factorization.

12122201021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45954661.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12122201021111 its reverse (11112010222121), we get a palindrome (23234211243232).

The spelling of 12122201021111 in words is "twelve trillion, one hundred twenty-two billion, two hundred one million, twenty-one thousand, one hundred eleven".