12121002110 has 192 divisors, whose sum is σ = 27303091200. Its totient is φ = 3855737088.

The previous prime is 12121002107. The next prime is 12121002119. The reversal of 12121002110 is 1120012121.

It is a junction number, because it is equal to n+sod(n) for n = 12121002091 and 12121002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121002119) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 50715371 + ... + 50715609.

It is an arithmetic number, because the mean of its divisors is an integer number (142203600).

Almost surely, 2^12121002110 is an apocalyptic number.

12121002110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121002110 is an abundant number, since it is smaller than the sum of its proper divisors (15182089090).

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

12121002110 is a wasteful number, since it uses less digits than its factorization.

12121002110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12121002110 its reverse (1120012121), we get a palindrome (13241014231).

The spelling of 12121002110 in words is "twelve billion, one hundred twenty-one million, two thousand, one hundred ten".