21220032202 has 16 divisors (see below), whose sum is σ = 32105388672. Its totient is φ = 10518444000.

The previous prime is 21220032193. The next prime is 21220032227. The reversal of 21220032202 is 20223002212.

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, 154213 + ... + 257335.

It is an arithmetic number, because the mean of its divisors is an integer number (2006586792).

Almost surely, 2^21220032202 is an apocalyptic number.

21220032202 is a deficient number, since it is larger than the sum of its proper divisors (10885356470).

21220032202 is a wasteful number, since it uses less digits than its factorization.

21220032202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104013.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 21220032202 its reverse (20223002212), we get a palindrome (41443034414).

The spelling of 21220032202 in words is "twenty-one billion, two hundred twenty million, thirty-two thousand, two hundred two".