21232313322 has 32 divisors (see below), whose sum is σ = 47577081024. Its totient is φ = 6260140800.

The previous prime is 21232313317. The next prime is 21232313327. The reversal of 21232313322 is 22331323212.

It is an interprime number because it is at equal distance from previous prime (21232313317) and next prime (21232313327).

It is a super-2 number, since 2×21232313322² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 21232313292 and 21232313301.

It is not an unprimeable number, because it can be changed into a prime (21232313327) 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 15 ways as a sum of consecutive naturals, for example, 4344879 + ... + 4349762.

It is an arithmetic number, because the mean of its divisors is an integer number (1486783782).

Almost surely, 2^21232313322 is an apocalyptic number.

21232313322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21232313322 is an abundant number, since it is smaller than the sum of its proper divisors (26344767702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21232313322 is a wasteful number, since it uses less digits than its factorization.

21232313322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8694694.

The product of its digits is 2592, while the sum is 24.

Adding to 21232313322 its reverse (22331323212), we get a palindrome (43563636534).

The spelling of 21232313322 in words is "twenty-one billion, two hundred thirty-two million, three hundred thirteen thousand, three hundred twenty-two".