12222213222020 has 24 divisors (see below), whose sum is σ = 25830129605784. Its totient is φ = 4857745890816.

The previous prime is 12222213221899. The next prime is 12222213222053. The reversal of 12222213222020 is 2022231222221.

It can be written as a sum of positive squares in 4 ways, for example, as 1853388177664 + 10368825044356 = 1361392^2 + 3220066^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1946209157 + ... + 1946215436.

It is an arithmetic number, because the mean of its divisors is an integer number (1076255400241).

Almost surely, 2^{12222213222020} is an apocalyptic number.

12222213222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222213222020 is an abundant number, since it is smaller than the sum of its proper divisors (13607916383764).

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

12222213222020 is a wasteful number, since it uses less digits than its factorization.

12222213222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892424759 (or 3892424757 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12222213222020 its reverse (2022231222221), we get a palindrome (14244444444241).

The spelling of 12222213222020 in words is "twelve trillion, two hundred twenty-two billion, two hundred thirteen million, two hundred twenty-two thousand, twenty".