20121322300312 has 32 divisors (see below), whose sum is σ = 40095243777600. Its totient is φ = 9433657321984.

The previous prime is 20121322300291. The next prime is 20121322300403. The reversal of 20121322300312 is 21300322312102.

It is a super-2 number, since 2×20121322300312² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 274965088 + ... + 275038255.

It is an arithmetic number, because the mean of its divisors is an integer number (1252976368050).

Almost surely, 2^{20121322300312} is an apocalyptic number.

It is an amenable number.

20121322300312 is a deficient number, since it is larger than the sum of its proper divisors (19973921477288).

20121322300312 is a wasteful number, since it uses less digits than its factorization.

20121322300312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550003635 (or 550003631 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20121322300312 its reverse (21300322312102), we get a palindrome (41421644612414).

The spelling of 20121322300312 in words is "twenty trillion, one hundred twenty-one billion, three hundred twenty-two million, three hundred thousand, three hundred twelve".