21322121031310 has 16 divisors (see below), whose sum is σ = 41868892207152. Its totient is φ = 7753498556800.

The previous prime is 21322121031307. The next prime is 21322121031413. The reversal of 21322121031310 is 1313012122312.

It is a super-2 number, since 2×21322121031310² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 96918731851 + ... + 96918732070.

It is an arithmetic number, because the mean of its divisors is an integer number (2616805762947).

Almost surely, 2^{21322121031310} is an apocalyptic number.

21322121031310 is a deficient number, since it is larger than the sum of its proper divisors (20546771175842).

21322121031310 is a wasteful number, since it uses less digits than its factorization.

21322121031310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193837463939.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21322121031310 its reverse (1313012122312), we get a palindrome (22635133153622).

The spelling of 21322121031310 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred twenty-one million, thirty-one thousand, three hundred ten".