21202230002 has 32 divisors (see below), whose sum is σ = 32374904688. Its totient is φ = 10412752896.

The previous prime is 21202229999. The next prime is 21202230013. The reversal of 21202230002 is 20003220212.

It can be written as a sum of positive squares in 8 ways, for example, as 1394200921 + 19808029081 = 37339^2 + 140741^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13651658 + ... + 13653210.

Almost surely, 2^21202230002 is an apocalyptic number.

21202230002 is a deficient number, since it is larger than the sum of its proper divisors (11172674686).

21202230002 is a wasteful number, since it uses less digits than its factorization.

21202230002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 21202230002 its reverse (20003220212), we get a palindrome (41205450214).

The spelling of 21202230002 in words is "twenty-one billion, two hundred two million, two hundred thirty thousand, two".