20003221002 has 16 divisors (see below), whose sum is σ = 40229943840. Its totient is φ = 6630490032.

The previous prime is 20003220967. The next prime is 20003221013. The reversal of 20003221002 is 20012230002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9311413 + ... + 9313560.

It is an arithmetic number, because the mean of its divisors is an integer number (2514371490).

Almost surely, 2^20003221002 is an apocalyptic number.

20003221002 is an abundant number, since it is smaller than the sum of its proper divisors (20226722838).

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

20003221002 is a wasteful number, since it uses less digits than its factorization.

20003221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18625157.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20003221002 its reverse (20012230002), we get a palindrome (40015451004).

The spelling of 20003221002 in words is "twenty billion, three million, two hundred twenty-one thousand, two".