20122536533 has 4 divisors (see below), whose sum is σ = 21951858048. Its totient is φ = 18293215020.

The previous prime is 20122536527. The next prime is 20122536541. The reversal of 20122536533 is 33563522102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20122536533 - 2¹⁴ = 20122520149 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 20122536533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122536563) 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, 914660741 + ... + 914660762.

It is an arithmetic number, because the mean of its divisors is an integer number (5487964512).

Almost surely, 2^20122536533 is an apocalyptic number.

It is an amenable number.

20122536533 is a deficient number, since it is larger than the sum of its proper divisors (1829321515).

20122536533 is a wasteful number, since it uses less digits than its factorization.

20122536533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829321514.

The product of its (nonzero) digits is 32400, while the sum is 32.

It can be divided in two parts, 20122 and 536533, that added together give a palindrome (556655).

The spelling of 20122536533 in words is "twenty billion, one hundred twenty-two million, five hundred thirty-six thousand, five hundred thirty-three".