12220202020221 has 32 divisors (see below), whose sum is σ = 19523001456000. Its totient is φ = 7509948079104.

The previous prime is 12220202020121. The next prime is 12220202020259. The reversal of 12220202020221 is 12202020202221.

12220202020221 is a `hidden beast` number, since 1 + 2 + 220 + 20 + 202 + 0 + 221 = 666.

It is not a de Polignac number, because 12220202020221 - 2⁹ = 12220202019709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12220202020194 and 12220202020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220202020121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23296356 + ... + 23815133.

It is an arithmetic number, because the mean of its divisors is an integer number (610093795500).

Almost surely, 2^{12220202020221} is an apocalyptic number.

It is an amenable number.

12220202020221 is a deficient number, since it is larger than the sum of its proper divisors (7302799435779).

12220202020221 is a wasteful number, since it uses less digits than its factorization.

12220202020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47112250 (or 47112244 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 12220202020221 its reverse (12202020202221), we get a palindrome (24422222222442).

It can be divided in two parts, 1 and 2220202020221, that added together give a palindrome (2220202020222).

The spelling of 12220202020221 in words is "twelve trillion, two hundred twenty billion, two hundred two million, twenty thousand, two hundred twenty-one".