12221020002 has 8 divisors (see below), whose sum is σ = 24442040016. Its totient is φ = 4073673332.

The previous prime is 12221019997. The next prime is 12221020013. The reversal of 12221020002 is 20002012221.

It is a sphenic number, since it is the product of 3 distinct primes.

12221020002 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12221020002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018418328 + ... + 1018418339.

It is an arithmetic number, because the mean of its divisors is an integer number (3055255002).

Almost surely, 2^12221020002 is an apocalyptic number.

12221020002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12221020002 is a wasteful number, since it uses less digits than its factorization.

12221020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036836672.

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

Adding to 12221020002 its reverse (20002012221), we get a palindrome (32223032223).

The spelling of 12221020002 in words is "twelve billion, two hundred twenty-one million, twenty thousand, two".