21222233103 has 16 divisors (see below), whose sum is σ = 29915676800. Its totient is φ = 13344976800.

The previous prime is 21222233003. The next prime is 21222233113. The reversal of 21222233103 is 30133222212.

It is a happy number.

It is not a de Polignac number, because 21222233103 - 2¹⁰ = 21222232079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21222233103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222233113) 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 15 ways as a sum of consecutive naturals, for example, 799873 + ... + 825978.

It is an arithmetic number, because the mean of its divisors is an integer number (1869729800).

Almost surely, 2^21222233103 is an apocalyptic number.

21222233103 is a deficient number, since it is larger than the sum of its proper divisors (8693443697).

21222233103 is a wasteful number, since it uses less digits than its factorization.

21222233103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626102.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21222233103 its reverse (30133222212), we get a palindrome (51355455315).

The spelling of 21222233103 in words is "twenty-one billion, two hundred twenty-two million, two hundred thirty-three thousand, one hundred three".