21322120222 has 32 divisors (see below), whose sum is σ = 36714384000. Its totient is φ = 9199907328.

The previous prime is 21322120219. The next prime is 21322120243. The reversal of 21322120222 is 22202122312.

It is a super-2 number, since 2×21322120222² (a number of 21 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 21322120222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96022 + ... + 227737.

It is an arithmetic number, because the mean of its divisors is an integer number (1147324500).

Almost surely, 2^21322120222 is an apocalyptic number.

21322120222 is a deficient number, since it is larger than the sum of its proper divisors (15392263778).

21322120222 is a wasteful number, since it uses less digits than its factorization.

21322120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323940.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 21322120222 its reverse (22202122312), we get a palindrome (43524242534).

The spelling of 21322120222 in words is "twenty-one billion, three hundred twenty-two million, one hundred twenty thousand, two hundred twenty-two".