20202023522 has 4 divisors (see below), whose sum is σ = 30303035286. Its totient is φ = 10101011760.

The previous prime is 20202023509. The next prime is 20202023557. The reversal of 20202023522 is 22532020202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17975033041 + 2226990481 = 134071^2 + 47191^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20202023494 and 20202023503.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050505879 + ... + 5050505882.

Almost surely, 2^20202023522 is an apocalyptic number.

20202023522 is a deficient number, since it is larger than the sum of its proper divisors (10101011764).

20202023522 is a wasteful number, since it uses less digits than its factorization.

20202023522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101011763.

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 20202023522 its reverse (22532020202), we get a palindrome (42734043724).

The spelling of 20202023522 in words is "twenty billion, two hundred two million, twenty-three thousand, five hundred twenty-two".