21322202321222 has 32 divisors (see below), whose sum is σ = 37640324100384. Its totient is φ = 8949688384000.

The previous prime is 21322202321197. The next prime is 21322202321227. The reversal of 21322202321222 is 22212320222312.

It is a junction number, because it is equal to n+sod(n) for n = 21322202321191 and 21322202321200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322202321227) 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, 537822029 + ... + 537861672.

It is an arithmetic number, because the mean of its divisors is an integer number (1176260128137).

Almost surely, 2^{21322202321222} is an apocalyptic number.

21322202321222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21322202321222 is a deficient number, since it is larger than the sum of its proper divisors (16318121779162).

21322202321222 is a wasteful number, since it uses less digits than its factorization.

21322202321222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075683784.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 21322202321222 its reverse (22212320222312), we get a palindrome (43534522543534).

The spelling of 21322202321222 in words is "twenty-one trillion, three hundred twenty-two billion, two hundred two million, three hundred twenty-one thousand, two hundred twenty-two".