12221220002020 has 48 divisors (see below), whose sum is σ = 26553862560960. Its totient is φ = 4719152221056.

The previous prime is 12221220001967. The next prime is 12221220002023. The reversal of 12221220002020 is 2020002212221.

It is a junction number, because it is equal to n+sod(n) for n = 12221220001985 and 12221220002003.

It is not an unprimeable number, because it can be changed into a prime (12221220002023) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1865059 + ... + 5284021.

It is an arithmetic number, because the mean of its divisors is an integer number (553205470020).

Almost surely, 2^{12221220002020} is an apocalyptic number.

12221220002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221220002020 is an abundant number, since it is smaller than the sum of its proper divisors (14332642558940).

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

12221220002020 is a wasteful number, since it uses less digits than its factorization.

12221220002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425164 (or 3425162 counting only the distinct ones).

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

Adding to 12221220002020 its reverse (2020002212221), we get a palindrome (14241222214241).

The spelling of 12221220002020 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty million, two thousand, twenty".