12120212030 has 16 divisors (see below), whose sum is σ = 21973336560. Its totient is φ = 4813205952.

The previous prime is 12120212009. The next prime is 12120212051. The reversal of 12120212030 is 3021202121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12120212009) and next prime (12120212051).

It is a junction number, because it is equal to n+sod(n) for n = 12120211996 and 12120212014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4358399 + ... + 4361178.

It is an arithmetic number, because the mean of its divisors is an integer number (1373333535).

Almost surely, 2^12120212030 is an apocalyptic number.

12120212030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120212030 is a deficient number, since it is larger than the sum of its proper divisors (9853124530).

12120212030 is a wasteful number, since it uses less digits than its factorization.

12120212030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8719723.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12120212030 its reverse (3021202121), we get a palindrome (15141414151).

Subtracting from 12120212030 its reverse (3021202121), we obtain a palindrome (9099009909).

The spelling of 12120212030 in words is "twelve billion, one hundred twenty million, two hundred twelve thousand, thirty".