21011122101110 has 48 divisors (see below), whose sum is σ = 39343541382288. Its totient is φ = 8077081816320.

The previous prime is 21011122101107. The next prime is 21011122101143. The reversal of 21011122101110 is 1110122111012.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8201477 + ... + 10454016.

It is an arithmetic number, because the mean of its divisors is an integer number (819657112131).

Almost surely, 2^{21011122101110} is an apocalyptic number.

21011122101110 is a deficient number, since it is larger than the sum of its proper divisors (18332419281178).

21011122101110 is a wasteful number, since it uses less digits than its factorization.

21011122101110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18655649 (or 18655608 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 21011122101110 its reverse (1110122111012), we get a palindrome (22121244212122).

The spelling of 21011122101110 in words is "twenty-one trillion, eleven billion, one hundred twenty-two million, one hundred one thousand, one hundred ten".