21022210103 has 2 divisors, whose sum is σ = 21022210104. Its totient is φ = 21022210102.

The previous prime is 21022210073. The next prime is 21022210133. The reversal of 21022210103 is 30101222012.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (21022210073) and next prime (21022210133).

It is a cyclic number.

It is not a de Polignac number, because 21022210103 - 2¹⁴ = 21022193719 is a prime.

It is a super-2 number, since 2×21022210103² (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 (21022210133) 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 as a sum of consecutive naturals, namely, 10511105051 + 10511105052.

It is an arithmetic number, because the mean of its divisors is an integer number (10511105052).

Almost surely, 2^21022210103 is an apocalyptic number.

21022210103 is a deficient number, since it is larger than the sum of its proper divisors (1).

21022210103 is an equidigital number, since it uses as much as digits as its factorization.

21022210103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21022210103 its reverse (30101222012), we get a palindrome (51123432115).

The spelling of 21022210103 in words is "twenty-one billion, twenty-two million, two hundred ten thousand, one hundred three".