12012220110 has 32 divisors (see below), whose sum is σ = 31450177152. Its totient is φ = 2912053280.

The previous prime is 12012220093. The next prime is 12012220127. The reversal of 12012220110 is 1102221021.

It is an interprime number because it is at equal distance from previous prime (12012220093) and next prime (12012220127).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18200004 + ... + 18200663.

It is an arithmetic number, because the mean of its divisors is an integer number (982818036).

Almost surely, 2^12012220110 is an apocalyptic number.

12012220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012220110 is an abundant number, since it is smaller than the sum of its proper divisors (19437957042).

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

12012220110 is a wasteful number, since it uses less digits than its factorization.

12012220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36400688.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12012220110 its reverse (1102221021), we get a palindrome (13114441131).

The spelling of 12012220110 in words is "twelve billion, twelve million, two hundred twenty thousand, one hundred ten".