12220100100221 has 8 divisors (see below), whose sum is σ = 13160135138304. Its totient is φ = 11280068967600.

The previous prime is 12220100100181. The next prime is 12220100100223. The reversal of 12220100100221 is 12200100102221.

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-12220100100221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12220100100196 and 12220100100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220100100223) 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, 10649396 + ... + 11740946.

It is an arithmetic number, because the mean of its divisors is an integer number (1645016892288).

Almost surely, 2^{12220100100221} is an apocalyptic number.

It is an amenable number.

12220100100221 is a deficient number, since it is larger than the sum of its proper divisors (940035038083).

12220100100221 is a wasteful number, since it uses less digits than its factorization.

12220100100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952731.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12220100100221 its reverse (12200100102221), we get a palindrome (24420200202442).

The spelling of 12220100100221 in words is "twelve trillion, two hundred twenty billion, one hundred million, one hundred thousand, two hundred twenty-one".