12122111010 has 32 divisors (see below), whose sum is σ = 29527296192. Its totient is φ = 3184315200.

The previous prime is 12122110921. The next prime is 12122111059. The reversal of 12122111010 is 1011122121.

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, 3013441 + ... + 3017460.

It is an arithmetic number, because the mean of its divisors is an integer number (922728006).

Almost surely, 2^12122111010 is an apocalyptic number.

12122111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122111010 is an abundant number, since it is smaller than the sum of its proper divisors (17405185182).

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

12122111010 is a wasteful number, since it uses less digits than its factorization.

12122111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6030978.

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

Adding to 12122111010 its reverse (1011122121), we get a palindrome (13133233131).

It can be divided in two parts, 121221 and 11010, that added together give a palindrome (132231).

The spelling of 12122111010 in words is "twelve billion, one hundred twenty-two million, one hundred eleven thousand, ten".