20432122212 has 12 divisors (see below), whose sum is σ = 47674951856. Its totient is φ = 6810707400.

The previous prime is 20432122177. The next prime is 20432122237. The reversal of 20432122212 is 21222123402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20432122212² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851338414 + ... + 851338437.

Almost surely, 2^20432122212 is an apocalyptic number.

It is an amenable number.

20432122212 is an abundant number, since it is smaller than the sum of its proper divisors (27242829644).

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

20432122212 is a wasteful number, since it uses less digits than its factorization.

20432122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702676858 (or 1702676856 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20432122212 its reverse (21222123402), we get a palindrome (41654245614).

The spelling of 20432122212 in words is "twenty billion, four hundred thirty-two million, one hundred twenty-two thousand, two hundred twelve".