21322021310 has 8 divisors (see below), whose sum is σ = 38379638376. Its totient is φ = 8528808520.

The previous prime is 21322021283. The next prime is 21322021337. The reversal of 21322021310 is 1312022312.

It is an interprime number because it is at equal distance from previous prime (21322021283) and next prime (21322021337).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21322021310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066101056 + ... + 1066101075.

It is an arithmetic number, because the mean of its divisors is an integer number (4797454797).

Almost surely, 2^21322021310 is an apocalyptic number.

21322021310 is a deficient number, since it is larger than the sum of its proper divisors (17057617066).

21322021310 is a wasteful number, since it uses less digits than its factorization.

21322021310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132202138.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21322021310 its reverse (1312022312), we get a palindrome (22634043622).

The spelling of 21322021310 in words is "twenty-one billion, three hundred twenty-two million, twenty-one thousand, three hundred ten".