21200002222 has 16 divisors (see below), whose sum is σ = 36498844512. Its totient is φ = 9046719360.

The previous prime is 21200002199. The next prime is 21200002237. The reversal of 21200002222 is 22220000212.

21200002222 is a modest number, since divided by 2222 gives 212 as remainder.

It is a congruent number.

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, 3246279 + ... + 3252802.

It is an arithmetic number, because the mean of its divisors is an integer number (2281177782).

Almost surely, 2^21200002222 is an apocalyptic number.

21200002222 is a deficient number, since it is larger than the sum of its proper divisors (15298842290).

21200002222 is a wasteful number, since it uses less digits than its factorization.

21200002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6499323.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 21200002222 its reverse (22220000212), we get a palindrome (43420002434).

The spelling of 21200002222 in words is "twenty-one billion, two hundred million, two thousand, two hundred twenty-two".