21113130122 has 8 divisors (see below), whose sum is σ = 36193937376. Its totient is φ = 9048484332.

The previous prime is 21113130089. The next prime is 21113130131. The reversal of 21113130122 is 22103131112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21113130122.

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, 754040348 + ... + 754040375.

It is an arithmetic number, because the mean of its divisors is an integer number (4524242172).

Almost surely, 2^21113130122 is an apocalyptic number.

21113130122 is a deficient number, since it is larger than the sum of its proper divisors (15080807254).

21113130122 is a wasteful number, since it uses less digits than its factorization.

21113130122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508080732.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21113130122 its reverse (22103131112), we get a palindrome (43216261234).

The spelling of 21113130122 in words is "twenty-one billion, one hundred thirteen million, one hundred thirty thousand, one hundred twenty-two".