21113122335 has 64 divisors (see below), whose sum is σ = 36763077120. Its totient is φ = 10311598080.

The previous prime is 21113122333. The next prime is 21113122337. The reversal of 21113122335 is 53322131112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21113122333) and next prime (21113122337).

It is not a de Polignac number, because 21113122335 - 2¹ = 21113122333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113122333) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1179855 + ... + 1197615.

It is an arithmetic number, because the mean of its divisors is an integer number (574423080).

Almost surely, 2^21113122335 is an apocalyptic number.

21113122335 is a deficient number, since it is larger than the sum of its proper divisors (15649954785).

21113122335 is a wasteful number, since it uses less digits than its factorization.

21113122335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17928.

The product of its digits is 1080, while the sum is 24.

Adding to 21113122335 its reverse (53322131112), we get a palindrome (74435253447).

The spelling of 21113122335 in words is "twenty-one billion, one hundred thirteen million, one hundred twenty-two thousand, three hundred thirty-five".