21202331210 has 32 divisors (see below), whose sum is σ = 39882661632. Its totient is φ = 8107444800.

The previous prime is 21202331207. The next prime is 21202331219. The reversal of 21202331210 is 1213320212.

It is not an unprimeable number, because it can be changed into a prime (21202331219) by changing a digit.

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, 504341 + ... + 544760.

It is an arithmetic number, because the mean of its divisors is an integer number (1246333176).

Almost surely, 2^21202331210 is an apocalyptic number.

21202331210 is a deficient number, since it is larger than the sum of its proper divisors (18680330422).

21202331210 is a wasteful number, since it uses less digits than its factorization.

21202331210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049198.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21202331210 its reverse (1213320212), we get a palindrome (22415651422).

The spelling of 21202331210 in words is "twenty-one billion, two hundred two million, three hundred thirty-one thousand, two hundred ten".