12220122010221 has 12 divisors (see below), whose sum is σ = 17702155615872. Its totient is φ = 8123270344776.

The previous prime is 12220122010181. The next prime is 12220122010249. The reversal of 12220122010221 is 12201022102221.

It is a happy number.

12220122010221 is a `hidden beast` number, since 1 + 2 + 220 + 1 + 220 + 1 + 0 + 221 = 666.

It is not a de Polignac number, because 12220122010221 - 2²⁹ = 12219585139309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12220122010194 and 12220122010203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220121010221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1956468541 + ... + 1956474786.

It is an arithmetic number, because the mean of its divisors is an integer number (1475179634656).

Almost surely, 2^{12220122010221} is an apocalyptic number.

It is an amenable number.

12220122010221 is a deficient number, since it is larger than the sum of its proper divisors (5482033605651).

12220122010221 is a wasteful number, since it uses less digits than its factorization.

12220122010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3912943680 (or 3912943677 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12220122010221 its reverse (12201022102221), we get a palindrome (24421144112442).

The spelling of 12220122010221 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-two million, ten thousand, two hundred twenty-one".