20121322213130 has 16 divisors (see below), whose sum is σ = 36225513890280. Its totient is φ = 8046943572672.

The previous prime is 20121322213123. The next prime is 20121322213171. The reversal of 20121322213130 is 3131222312102.

It can be written as a sum of positive squares in 4 ways, for example, as 19675727247289 + 445594965841 = 4435733^2 + 667529^2 .

It is a super-3 number, since 3×20121322213130³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 20121322213096 and 20121322213105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198110765 + ... + 198212304.

Almost surely, 2^{20121322213130} is an apocalyptic number.

20121322213130 is a deficient number, since it is larger than the sum of its proper divisors (16104191677150).

20121322213130 is a wasteful number, since it uses less digits than its factorization.

20121322213130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396328153.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20121322213130 its reverse (3131222312102), we get a palindrome (23252544525232).

The spelling of 20121322213130 in words is "twenty trillion, one hundred twenty-one billion, three hundred twenty-two million, two hundred thirteen thousand, one hundred thirty".