21322022312 has 16 divisors (see below), whose sum is σ = 40908531840. Its totient is φ = 10413080496.

The previous prime is 21322022287. The next prime is 21322022317.

It is a happy number.

21322022312 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (21322022317) 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 in 3 ways as a sum of consecutive naturals, for example, 30990968 + ... + 30991655.

It is an arithmetic number, because the mean of its divisors is an integer number (2556783240).

Almost surely, 2^21322022312 is an apocalyptic number.

It is an amenable number.

21322022312 is a deficient number, since it is larger than the sum of its proper divisors (19586509528).

21322022312 is a wasteful number, since it uses less digits than its factorization.

21322022312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61982672 (or 61982668 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

It can be divided in two parts, 213220 and 22312, that added together give a palindrome (235532).

The spelling of 21322022312 in words is "twenty-one billion, three hundred twenty-two million, twenty-two thousand, three hundred twelve".