20522101235 has 4 divisors (see below), whose sum is σ = 24626521488. Its totient is φ = 16417680984.

The previous prime is 20522101217. The next prime is 20522101247. The reversal of 20522101235 is 53210122502.

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

It is a cyclic number.

It is not a de Polignac number, because 20522101235 - 2⁸ = 20522100979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20522101235.

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, 2052210119 + ... + 2052210128.

It is an arithmetic number, because the mean of its divisors is an integer number (6156630372).

Almost surely, 2^20522101235 is an apocalyptic number.

20522101235 is a deficient number, since it is larger than the sum of its proper divisors (4104420253).

20522101235 is an equidigital number, since it uses as much as digits as its factorization.

20522101235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104420252.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 20522101235 its reverse (53210122502), we get a palindrome (73732223737).

The spelling of 20522101235 in words is "twenty billion, five hundred twenty-two million, one hundred one thousand, two hundred thirty-five".