20224402323312 has 320 divisors, whose sum is σ = 59690422996992. Its totient is φ = 5840862720000.

The previous prime is 20224402323259. The next prime is 20224402323347. The reversal of 20224402323312 is 21332320442202.

It is a self number, because there is not a number n which added to its sum of digits gives 20224402323312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5663510487 + ... + 5663514057.

Almost surely, 2^{20224402323312} is an apocalyptic number.

20224402323312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20224402323312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29845211498496).

20224402323312 is an abundant number, since it is smaller than the sum of its proper divisors (39466020673680).

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

20224402323312 is a wasteful number, since it uses less digits than its factorization.

20224402323312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5180 (or 5174 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 20224402323312 its reverse (21332320442202), we get a palindrome (41556722765514).

The spelling of 20224402323312 in words is "twenty trillion, two hundred twenty-four billion, four hundred two million, three hundred twenty-three thousand, three hundred twelve".