12101122110 has 64 divisors (see below), whose sum is σ = 36209078784. Its totient is φ = 2514518400.

The previous prime is 12101122091. The next prime is 12101122133. The reversal of 12101122110 is 1122110121.

It is a super-2 number, since 2×12101122110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2616981 + ... + 2621600.

It is an arithmetic number, because the mean of its divisors is an integer number (565766856).

Almost surely, 2^12101122110 is an apocalyptic number.

12101122110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12101122110 is an abundant number, since it is smaller than the sum of its proper divisors (24107956674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12101122110 is a wasteful number, since it uses less digits than its factorization.

12101122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5238609.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12101122110 its reverse (1122110121), we get a palindrome (13223232231).

The spelling of 12101122110 in words is "twelve billion, one hundred one million, one hundred twenty-two thousand, one hundred ten".