12202020221 has 8 divisors (see below), whose sum is σ = 12236603904. Its totient is φ = 12167476560.

The previous prime is 12202020179. The next prime is 12202020223.

12202020221 is nontrivially palindromic in base 10.

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 12202020221 - 2¹⁸ = 12201758077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12202020196 and 12202020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202020223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663476 + ... + 681618.

It is an arithmetic number, because the mean of its divisors is an integer number (1529575488).

Almost surely, 2^12202020221 is an apocalyptic number.

It is an amenable number.

12202020221 is a deficient number, since it is larger than the sum of its proper divisors (34583683).

12202020221 is a wasteful number, since it uses less digits than its factorization.

12202020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20011.

The product of its (nonzero) digits is 64, while the sum is 14.

It can be divided in two parts, 122020 and 20221, that added together give a palindrome (142241).

The spelling of 12202020221 in words is "twelve billion, two hundred two million, twenty thousand, two hundred twenty-one".