21222335707 has 2 divisors, whose sum is σ = 21222335708. Its totient is φ = 21222335706.

The previous prime is 21222335657. The next prime is 21222335789. The reversal of 21222335707 is 70753322212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21222335707 - 2¹⁵ = 21222302939 is a prime.

It is not a weakly prime, because it can be changed into another prime (21222335507) 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, 10611167853 + 10611167854.

It is an arithmetic number, because the mean of its divisors is an integer number (10611167854).

Almost surely, 2^21222335707 is an apocalyptic number.

21222335707 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222335707 is an equidigital number, since it uses as much as digits as its factorization.

21222335707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 34.

Adding to 21222335707 its reverse (70753322212), we get a palindrome (91975657919).

The spelling of 21222335707 in words is "twenty-one billion, two hundred twenty-two million, three hundred thirty-five thousand, seven hundred seven".