21010110121334 has 8 divisors (see below), whose sum is σ = 31515185153208. Its totient is φ = 10505048403600.

The previous prime is 21010110121331. The next prime is 21010110121433. The reversal of 21010110121334 is 43312101101012.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010110121331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3098594 + ... + 7184810.

It is an arithmetic number, because the mean of its divisors is an integer number (3939398144151).

Almost surely, 2^{21010110121334} is an apocalyptic number.

21010110121334 is a deficient number, since it is larger than the sum of its proper divisors (10505075031874).

21010110121334 is a wasteful number, since it uses less digits than its factorization.

21010110121334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6657070.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 21010110121334 its reverse (43312101101012), we get a palindrome (64322211222346).

The spelling of 21010110121334 in words is "twenty-one trillion, ten billion, one hundred ten million, one hundred twenty-one thousand, three hundred thirty-four".