20213501212032 has 256 divisors, whose sum is σ = 56589192000000. Its totient is φ = 6380264816640.

The previous prime is 20213501211977. The next prime is 20213501212033. The reversal of 20213501212032 is 23021210531202.

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

It is a junction number, because it is equal to n+sod(n) for n = 20213501211993 and 20213501212011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213501212033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1202388907 + ... + 1202405717.

It is an arithmetic number, because the mean of its divisors is an integer number (221051531250).

Almost surely, 2^{20213501212032} 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 20213501212032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28294596000000).

20213501212032 is an abundant number, since it is smaller than the sum of its proper divisors (36375690787968).

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

20213501212032 is a wasteful number, since it uses less digits than its factorization.

20213501212032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18209 (or 18197 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 20213501212032 its reverse (23021210531202), we get a palindrome (43234711743234).

The spelling of 20213501212032 in words is "twenty trillion, two hundred thirteen billion, five hundred one million, two hundred twelve thousand, thirty-two".