12221122211101 has 8 divisors (see below), whose sum is σ = 12864850507520. Its totient is φ = 11577445048512.

The previous prime is 12221122211087. The next prime is 12221122211171. The reversal of 12221122211101 is 10111222112221.

It is a happy number.

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 12221122211101 - 2¹⁷ = 12221122080029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221122211171) 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, 12292380 + ... + 13249333.

It is an arithmetic number, because the mean of its divisors is an integer number (1608106313440).

Almost surely, 2^{12221122211101} is an apocalyptic number.

It is an amenable number.

12221122211101 is a deficient number, since it is larger than the sum of its proper divisors (643728296419).

12221122211101 is a wasteful number, since it uses less digits than its factorization.

12221122211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25566915.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12221122211101 its reverse (10111222112221), we get a palindrome (22332344323322).

The spelling of 12221122211101 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred eleven thousand, one hundred one".