21303220002 has 8 divisors (see below), whose sum is σ = 42606440016. Its totient is φ = 7101073332.

The previous prime is 21303219967. The next prime is 21303220009. The reversal of 21303220002 is 20002230312.

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

21303220002 is an admirable number.

It is a super-2 number, since 2×21303220002² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21303220009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1775268328 + ... + 1775268339.

It is an arithmetic number, because the mean of its divisors is an integer number (5325805002).

Almost surely, 2^21303220002 is an apocalyptic number.

21303220002 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.

21303220002 is a wasteful number, since it uses less digits than its factorization.

21303220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3550536672.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 21303220002 its reverse (20002230312), we get a palindrome (41305450314).

The spelling of 21303220002 in words is "twenty-one billion, three hundred three million, two hundred twenty thousand, two".