20235124522 has 4 divisors (see below), whose sum is σ = 30352686786. Its totient is φ = 10117562260.

The previous prime is 20235124519. The next prime is 20235124541. The reversal of 20235124522 is 22542153202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22542153202 = 2 ⋅11271076601.

It can be written as a sum of positive squares in only one way, i.e., 20175077521 + 60047001 = 142039^2 + 7749^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5058781129 + ... + 5058781132.

Almost surely, 2^20235124522 is an apocalyptic number.

20235124522 is a deficient number, since it is larger than the sum of its proper divisors (10117562264).

20235124522 is a wasteful number, since it uses less digits than its factorization.

20235124522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10117562263.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 20235124522 its reverse (22542153202), we get a palindrome (42777277724).

The spelling of 20235124522 in words is "twenty billion, two hundred thirty-five million, one hundred twenty-four thousand, five hundred twenty-two".