21201200222 has 16 divisors (see below), whose sum is σ = 33189737472. Its totient is φ = 10138100280.

The previous prime is 21201200221. The next prime is 21201200227. The reversal of 21201200222 is 22200210212.

It is a junction number, because it is equal to n+sod(n) for n = 21201200197 and 21201200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21201200221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288623 + ... + 354549.

It is an arithmetic number, because the mean of its divisors is an integer number (2074358592).

Almost surely, 2^21201200222 is an apocalyptic number.

21201200222 is a deficient number, since it is larger than the sum of its proper divisors (11988537250).

21201200222 is a wasteful number, since it uses less digits than its factorization.

21201200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72943.

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

Adding to 21201200222 its reverse (22200210212), we get a palindrome (43401410434).

The spelling of 21201200222 in words is "twenty-one billion, two hundred one million, two hundred thousand, two hundred twenty-two".