20322222012312 has 64 divisors (see below), whose sum is σ = 56922194361600. Its totient is φ = 5991809927040.

The previous prime is 20322222012293. The next prime is 20322222012319. The reversal of 20322222012312 is 21321022222302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322222012319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1040235012 + ... + 1040254547.

It is an arithmetic number, because the mean of its divisors is an integer number (889409286900).

Almost surely, 2^{20322222012312} is an apocalyptic number.

20322222012312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20322222012312 is an abundant number, since it is smaller than the sum of its proper divisors (36599972349288).

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

20322222012312 is a wasteful number, since it uses less digits than its factorization.

20322222012312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080489616 (or 2080489612 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20322222012312 its reverse (21321022222302), we get a palindrome (41643244234614).

The spelling of 20322222012312 in words is "twenty trillion, three hundred twenty-two billion, two hundred twenty-two million, twelve thousand, three hundred twelve".