21611121271334 has 16 divisors (see below), whose sum is σ = 37047712884000. Its totient is φ = 9261890011584.

The previous prime is 21611121271303. The next prime is 21611121271447. The reversal of 21611121271334 is 43317212111612.

It is a junction number, because it is equal to n+sod(n) for n = 21611121271294 and 21611121271303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7058192 + ... + 9645740.

It is an arithmetic number, because the mean of its divisors is an integer number (2315482055250).

Almost surely, 2^{21611121271334} is an apocalyptic number.

21611121271334 is a deficient number, since it is larger than the sum of its proper divisors (15436591612666).

21611121271334 is a wasteful number, since it uses less digits than its factorization.

21611121271334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184127.

The product of its digits is 12096, while the sum is 35.

Adding to 21611121271334 its reverse (43317212111612), we get a palindrome (64928333382946).

The spelling of 21611121271334 in words is "twenty-one trillion, six hundred eleven billion, one hundred twenty-one million, two hundred seventy-one thousand, three hundred thirty-four".