21122003222 has 32 divisors (see below), whose sum is σ = 32354795520. Its totient is φ = 10340205120.

The previous prime is 21122003153. The next prime is 21122003237. The reversal of 21122003222 is 22230022112.

It is a super-2 number, since 2×21122003222² (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 21122003222.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6227147 + ... + 6230537.

It is an arithmetic number, because the mean of its divisors is an integer number (1011087360).

Almost surely, 2^21122003222 is an apocalyptic number.

21122003222 is a deficient number, since it is larger than the sum of its proper divisors (11232792298).

21122003222 is a wasteful number, since it uses less digits than its factorization.

21122003222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21122003222 its reverse (22230022112), we get a palindrome (43352025334).

The spelling of 21122003222 in words is "twenty-one billion, one hundred twenty-two million, three thousand, two hundred twenty-two".