12222122101 has 16 divisors (see below), whose sum is σ = 14059008000. Its totient is φ = 10408110768.

The previous prime is 12222122083. The next prime is 12222122147. The reversal of 12222122101 is 10122122221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12222122101 - 2²⁷ = 12087904373 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 (12222122201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 995466 + ... + 1007668.

It is an arithmetic number, because the mean of its divisors is an integer number (878688000).

Almost surely, 2^12222122101 is an apocalyptic number.

It is an amenable number.

12222122101 is a deficient number, since it is larger than the sum of its proper divisors (1836885899).

12222122101 is a wasteful number, since it uses less digits than its factorization.

12222122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13128.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12222122101 its reverse (10122122221), we get a palindrome (22344244322).

The spelling of 12222122101 in words is "twelve billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred one".