21200200002222 has 32 divisors (see below), whose sum is σ = 44897467130784. Its totient is φ = 6650609664000.

The previous prime is 21200200002139. The next prime is 21200200002227. The reversal of 21200200002222 is 22220000200212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200200002227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5198529 + ... + 8332172.

It is an arithmetic number, because the mean of its divisors is an integer number (1403045847837).

Almost surely, 2^{21200200002222} is an apocalyptic number.

21200200002222 is an abundant number, since it is smaller than the sum of its proper divisors (23697267128562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21200200002222 is a wasteful number, since it uses less digits than its factorization.

21200200002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13546084.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 21200200002222 its reverse (22220000200212), we get a palindrome (43420200202434).

The spelling of 21200200002222 in words is "twenty-one trillion, two hundred billion, two hundred million, two thousand, two hundred twenty-two".