21222302219968 has 14 divisors (see below), whose sum is σ = 42113005967876. Its totient is φ = 10611151109952.

The previous prime is 21222302219953. The next prime is 21222302219969. The reversal of 21222302219968 is 86991220322212.

It is a super-2 number, since 2×21222302219968² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21222302219969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165799236030 + ... + 165799236157.

Almost surely, 2^{21222302219968} is an apocalyptic number.

It is an amenable number.

21222302219968 is a deficient number, since it is larger than the sum of its proper divisors (20890703747908).

21222302219968 is an equidigital number, since it uses as much as digits as its factorization.

21222302219968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331598472199 (or 331598472189 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 21222302219968 in words is "twenty-one trillion, two hundred twenty-two billion, three hundred two million, two hundred nineteen thousand, nine hundred sixty-eight".