12221202022 has 8 divisors (see below), whose sum is σ = 18336990672. Its totient is φ = 6108871800.

The previous prime is 12221202017. The next prime is 12221202023. The reversal of 12221202022 is 22020212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12221201987 and 12221202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221202023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855754 + ... + 869917.

It is an arithmetic number, because the mean of its divisors is an integer number (2292123834).

Almost surely, 2^12221202022 is an apocalyptic number.

12221202022 is a deficient number, since it is larger than the sum of its proper divisors (6115788650).

12221202022 is a wasteful number, since it uses less digits than its factorization.

12221202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729214.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12221202022 its reverse (22020212221), we get a palindrome (34241414243).

The spelling of 12221202022 in words is "twelve billion, two hundred twenty-one million, two hundred two thousand, twenty-two".