20213132322012 has 192 divisors, whose sum is σ = 56168913024000. Its totient is φ = 5535227658240.

The previous prime is 20213132321969. The next prime is 20213132322017. The reversal of 20213132322012 is 21022323131202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213132322017) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 625370812 + ... + 625403132.

It is an arithmetic number, because the mean of its divisors is an integer number (292546422000).

Almost surely, 2^{20213132322012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20213132322012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28084456512000).

20213132322012 is an abundant number, since it is smaller than the sum of its proper divisors (35955780701988).

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

20213132322012 is a wasteful number, since it uses less digits than its factorization.

20213132322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34236 (or 34234 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20213132322012 its reverse (21022323131202), we get a palindrome (41235455453214).

The spelling of 20213132322012 in words is "twenty trillion, two hundred thirteen billion, one hundred thirty-two million, three hundred twenty-two thousand, twelve".