21222000200210 has 8 divisors (see below), whose sum is σ = 38199600360396. Its totient is φ = 8488800080080.

The previous prime is 21222000200207. The next prime is 21222000200213. The reversal of 21222000200210 is 1200200022212.

It is an interprime number because it is at equal distance from previous prime (21222000200207) and next prime (21222000200213).

It can be written as a sum of positive squares in 2 ways, for example, as 20955602797441 + 266397402769 = 4577729^2 + 516137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21222000200213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061100010001 + ... + 1061100010020.

Almost surely, 2^{21222000200210} is an apocalyptic number.

21222000200210 is a deficient number, since it is larger than the sum of its proper divisors (16977600160186).

21222000200210 is a wasteful number, since it uses less digits than its factorization.

21222000200210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122200020028.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21222000200210 its reverse (1200200022212), we get a palindrome (22422200222422).

The spelling of 21222000200210 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred thousand, two hundred ten".