21022300222 has 64 divisors (see below), whose sum is σ = 40282790400. Its totient is φ = 7990519680.

The previous prime is 21022300213. The next prime is 21022300223. The reversal of 21022300222 is 22200322012.

It is a junction number, because it is equal to n+sod(n) for n = 21022300196 and 21022300205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022300223) 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 31 ways as a sum of consecutive naturals, for example, 1453804 + ... + 1468192.

It is an arithmetic number, because the mean of its divisors is an integer number (629418600).

Almost surely, 2^21022300222 is an apocalyptic number.

21022300222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21022300222 is a deficient number, since it is larger than the sum of its proper divisors (19260490178).

21022300222 is a wasteful number, since it uses less digits than its factorization.

21022300222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14641.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 21022300222 its reverse (22200322012), we get a palindrome (43222622234).

The spelling of 21022300222 in words is "twenty-one billion, twenty-two million, three hundred thousand, two hundred twenty-two".