12221220220002 has 32 divisors (see below), whose sum is σ = 27158405457600. Its totient is φ = 4073719328064.

The previous prime is 12221220219983. The next prime is 12221220220019. The reversal of 12221220220002 is 20002202212221.

12221220220002 is a `hidden beast` number, since 1 + 2 + 221 + 220 + 220 + 0 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13106458 + ... + 14007914.

It is an arithmetic number, because the mean of its divisors is an integer number (848700170550).

Almost surely, 2^{12221220220002} is an apocalyptic number.

12221220220002 is an abundant number, since it is smaller than the sum of its proper divisors (14937185237598).

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

12221220220002 is a wasteful number, since it uses less digits than its factorization.

12221220220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152527 (or 1152521 counting only the distinct ones).

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

Adding to 12221220220002 its reverse (20002202212221), we get a palindrome (32223422432223).

The spelling of 12221220220002 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twenty thousand, two".