20522124412 has 12 divisors (see below), whose sum is σ = 35954396296. Its totient is φ = 10249439760.

The previous prime is 20522124377. The next prime is 20522124419. The reversal of 20522124412 is 21442122502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522124419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2901639 + ... + 2908702.

Almost surely, 2^20522124412 is an apocalyptic number.

It is an amenable number.

20522124412 is a deficient number, since it is larger than the sum of its proper divisors (15432271884).

20522124412 is a wasteful number, since it uses less digits than its factorization.

20522124412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5811228 (or 5811226 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 20522124412 its reverse (21442122502), we get a palindrome (41964246914).

The spelling of 20522124412 in words is "twenty billion, five hundred twenty-two million, one hundred twenty-four thousand, four hundred twelve".