21122203322 has 16 divisors (see below), whose sum is σ = 35079482592. Its totient is φ = 9457702320.

The previous prime is 21122203321. The next prime is 21122203381. The reversal of 21122203322 is 22330222112.

It is a happy number.

It is a super-2 number, since 2×21122203322² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21122203294 and 21122203303.

It is not an unprimeable number, because it can be changed into a prime (21122203321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7163453 + ... + 7166400.

It is an arithmetic number, because the mean of its divisors is an integer number (2192467662).

Almost surely, 2^21122203322 is an apocalyptic number.

21122203322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21122203322 is a deficient number, since it is larger than the sum of its proper divisors (13957279270).

21122203322 is a wasteful number, since it uses less digits than its factorization.

21122203322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14329933.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21122203322 its reverse (22330222112), we get a palindrome (43452425434).

The spelling of 21122203322 in words is "twenty-one billion, one hundred twenty-two million, two hundred three thousand, three hundred twenty-two".