12221221022202 has 16 divisors (see below), whose sum is σ = 24442495120512. Its totient is φ = 4073731494720.

The previous prime is 12221221022141. The next prime is 12221221022207. The reversal of 12221221022202 is 20222012212221.

It is not an unprimeable number, because it can be changed into a prime (12221221022207) 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, 1182543 + ... + 5083389.

It is an arithmetic number, because the mean of its divisors is an integer number (1527655945032).

Almost surely, 2^{12221221022202} is an apocalyptic number.

12221221022202 is an abundant number, since it is smaller than the sum of its proper divisors (12221274098310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221221022202 is a wasteful number, since it uses less digits than its factorization.

12221221022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423013.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12221221022202 its reverse (20222012212221), we get a palindrome (32443233234423).

The spelling of 12221221022202 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty-one million, twenty-two thousand, two hundred two".