12222220101 has 48 divisors (see below), whose sum is σ = 20712461184. Its totient is φ = 6272577792.

The previous prime is 12222220097. The next prime is 12222220123. The reversal of 12222220101 is 10102222221.

It is not a de Polignac number, because 12222220101 - 2² = 12222220097 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222220151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84775 + ... + 177851.

It is an arithmetic number, because the mean of its divisors is an integer number (431509608).

Almost surely, 2^12222220101 is an apocalyptic number.

It is an amenable number.

12222220101 is a deficient number, since it is larger than the sum of its proper divisors (8490241083).

12222220101 is a wasteful number, since it uses less digits than its factorization.

12222220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93150 (or 93137 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12222220101 its reverse (10102222221), we get a palindrome (22324442322).

The spelling of 12222220101 in words is "twelve billion, two hundred twenty-two million, two hundred twenty thousand, one hundred one".