21133412835 has 16 divisors (see below), whose sum is σ = 33817422240. Its totient is φ = 11269832960.

The previous prime is 21133412821. The next prime is 21133412857. The reversal of 21133412835 is 53821433112.

It is not a de Polignac number, because 21133412835 - 2⁴ = 21133412819 is a prime.

It is a super-2 number, since 2×21133412835² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21133412796 and 21133412805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57415 + ... + 213455.

It is an arithmetic number, because the mean of its divisors is an integer number (2113588890).

Almost surely, 2^21133412835 is an apocalyptic number.

21133412835 is a deficient number, since it is larger than the sum of its proper divisors (12684009405).

21133412835 is a wasteful number, since it uses less digits than its factorization.

21133412835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165078.

The product of its digits is 17280, while the sum is 33.

Adding to 21133412835 its reverse (53821433112), we get a palindrome (74954845947).

The spelling of 21133412835 in words is "twenty-one billion, one hundred thirty-three million, four hundred twelve thousand, eight hundred thirty-five".