21010110011122 has 8 divisors (see below), whose sum is σ = 31517350729200. Its totient is φ = 10504326434724.

The previous prime is 21010110011083. The next prime is 21010110011129. The reversal of 21010110011122 is 22111001101012.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (21010110011129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364249372 + ... + 364307047.

It is an arithmetic number, because the mean of its divisors is an integer number (3939668841150).

Almost surely, 2^{21010110011122} is an apocalyptic number.

21010110011122 is a deficient number, since it is larger than the sum of its proper divisors (10507240718078).

21010110011122 is a wasteful number, since it uses less digits than its factorization.

21010110011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728570840.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 21010110011122 its reverse (22111001101012), we get a palindrome (43121111112134).

The spelling of 21010110011122 in words is "twenty-one trillion, ten billion, one hundred ten million, eleven thousand, one hundred twenty-two".