20122132032 has 84 divisors (see below), whose sum is σ = 57771560860. Its totient is φ = 6696317952.

The previous prime is 20122132031. The next prime is 20122132139. The reversal of 20122132032 is 23023122102.

It can be written as a sum of positive squares in 2 ways, for example, as 7120659456 + 13001472576 = 84384^2 + 114024^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20122131996 and 20122132014.

It is not an unprimeable number, because it can be changed into a prime (20122132031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 324594 + ... + 381582.

Almost surely, 2^20122132032 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 20122132032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28885780430).

20122132032 is an abundant number, since it is smaller than the sum of its proper divisors (37649428828).

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

20122132032 is a wasteful number, since it uses less digits than its factorization.

20122132032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57620 (or 57607 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20122132032 its reverse (23023122102), we get a palindrome (43145254134).

The spelling of 20122132032 in words is "twenty billion, one hundred twenty-two million, one hundred thirty-two thousand, thirty-two".