21113132122 has 16 divisors (see below), whose sum is σ = 32447419200. Its totient is φ = 10297409760.

The previous prime is 21113132107. The next prime is 21113132129. The reversal of 21113132122 is 22123131112.

It is a self number, because there is not a number n which added to its sum of digits gives 21113132122.

It is not an unprimeable number, because it can be changed into a prime (21113132129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594379 + ... + 628897.

It is an arithmetic number, because the mean of its divisors is an integer number (2027963700).

Almost surely, 2^21113132122 is an apocalyptic number.

21113132122 is a deficient number, since it is larger than the sum of its proper divisors (11334287078).

21113132122 is a wasteful number, since it uses less digits than its factorization.

21113132122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42021.

The product of its digits is 144, while the sum is 19.

Adding to 21113132122 its reverse (22123131112), we get a palindrome (43236263234).

It can be divided in two parts, 211131 and 32122, that added together give a triangular number (243253 = T₆₉₇).

The spelling of 21113132122 in words is "twenty-one billion, one hundred thirteen million, one hundred thirty-two thousand, one hundred twenty-two".