20522112321432 has 64 divisors (see below), whose sum is σ = 53428965212160. Its totient is φ = 6561451814400.

The previous prime is 20522112321419. The next prime is 20522112321437. The reversal of 20522112321432 is 23412321122502.

It is a happy number.

It is a super-2 number, since 2×20522112321432² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20522112321432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522112321437) 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, 121966744 + ... + 122134887.

It is an arithmetic number, because the mean of its divisors is an integer number (834827581440).

Almost surely, 2^{20522112321432} is an apocalyptic number.

It is an amenable number.

20522112321432 is an abundant number, since it is smaller than the sum of its proper divisors (32906852890728).

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

20522112321432 is a wasteful number, since it uses less digits than its factorization.

20522112321432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244101784 (or 244101780 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 20522112321432 its reverse (23412321122502), we get a palindrome (43934433443934).

The spelling of 20522112321432 in words is "twenty trillion, five hundred twenty-two billion, one hundred twelve million, three hundred twenty-one thousand, four hundred thirty-two".