21132222103 has 2 divisors, whose sum is σ = 21132222104. Its totient is φ = 21132222102.

The previous prime is 21132222071. The next prime is 21132222107. The reversal of 21132222103 is 30122223112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21132222103 - 2⁵ = 21132222071 is a prime.

It is a super-2 number, since 2×21132222103² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21132222107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566111051 + 10566111052.

It is an arithmetic number, because the mean of its divisors is an integer number (10566111052).

Almost surely, 2^21132222103 is an apocalyptic number.

21132222103 is a deficient number, since it is larger than the sum of its proper divisors (1).

21132222103 is an equidigital number, since it uses as much as digits as its factorization.

21132222103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21132222103 its reverse (30122223112), we get a palindrome (51254445215).

The spelling of 21132222103 in words is "twenty-one billion, one hundred thirty-two million, two hundred twenty-two thousand, one hundred three".