12122212222110 has 48 divisors (see below), whose sum is σ = 29508845958288. Its totient is φ = 3187060450560.

The previous prime is 12122212222097. The next prime is 12122212222123. The reversal of 12122212222110 is 1122221222121.

It is an interprime number because it is at equal distance from previous prime (12122212222097) and next prime (12122212222123).

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, 39927499 + ... + 40229958.

It is an arithmetic number, because the mean of its divisors is an integer number (614767624131).

Almost surely, 2^{12122212222110} is an apocalyptic number.

12122212222110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122212222110 is an abundant number, since it is smaller than the sum of its proper divisors (17386633736178).

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

12122212222110 is an equidigital number, since it uses as much as digits as its factorization.

12122212222110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80157609 (or 80157538 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12122212222110 its reverse (1122221222121), we get a palindrome (13244433444231).

The spelling of 12122212222110 in words is "twelve trillion, one hundred twenty-two billion, two hundred twelve million, two hundred twenty-two thousand, one hundred ten".