12000002221020 has 48 divisors (see below), whose sum is σ = 36654552240768. Its totient is φ = 2909091447360.

The previous prime is 12000002221001. The next prime is 12000002221063. The reversal of 12000002221020 is 2012220000021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12000002220987 and 12000002221005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9090910114 + ... + 9090911433.

It is an arithmetic number, because the mean of its divisors is an integer number (763636505016).

Almost surely, 2^{12000002221020} is an apocalyptic number.

12000002221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000002221020 is an abundant number, since it is smaller than the sum of its proper divisors (24654550019748).

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

12000002221020 is a wasteful number, since it uses less digits than its factorization.

12000002221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18181821570 (or 18181821568 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12000002221020 its reverse (2012220000021), we get a palindrome (14012222221041).

The spelling of 12000002221020 in words is "twelve trillion, two million, two hundred twenty-one thousand, twenty".