21111120200222 has 16 divisors (see below), whose sum is σ = 35585299602720. Its totient is φ = 9319959419232.

The previous prime is 21111120200207. The next prime is 21111120200227. The reversal of 21111120200222 is 22200202111112.

It is a super-2 number, since 2×21111120200222² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21111120200222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21111120200227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17651437697 + ... + 17651438892.

It is an arithmetic number, because the mean of its divisors is an integer number (2224081225170).

Almost surely, 2^{21111120200222} is an apocalyptic number.

21111120200222 is a deficient number, since it is larger than the sum of its proper divisors (14474179402498).

21111120200222 is a wasteful number, since it uses less digits than its factorization.

21111120200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35302876627.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21111120200222 its reverse (22200202111112), we get a palindrome (43311322311334).

The spelling of 21111120200222 in words is "twenty-one trillion, one hundred eleven billion, one hundred twenty million, two hundred thousand, two hundred twenty-two".