12121210130 has 16 divisors (see below), whose sum is σ = 21859905024. Its totient is φ = 4839211440.

The previous prime is 12121210121. The next prime is 12121210139. The reversal of 12121210130 is 3101212121.

It is an interprime number because it is at equal distance from previous prime (12121210121) and next prime (12121210139).

It is a super-2 number, since 2×12121210130² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12121210139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153586 + ... + 1164045.

It is an arithmetic number, because the mean of its divisors is an integer number (1366244064).

Almost surely, 2^12121210130 is an apocalyptic number.

12121210130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121210130 is a deficient number, since it is larger than the sum of its proper divisors (9738694894).

12121210130 is a wasteful number, since it uses less digits than its factorization.

12121210130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318161.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12121210130 its reverse (3101212121), we get a palindrome (15222422251).

The spelling of 12121210130 in words is "twelve billion, one hundred twenty-one million, two hundred ten thousand, one hundred thirty".