12101211123030 has 96 divisors (see below), whose sum is σ = 32483907256320. Its totient is φ = 3122333766720.

The previous prime is 12101211123019. The next prime is 12101211123047. The reversal of 12101211123030 is 3032111210121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12101211122994 and 12101211123012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15302491 + ... + 16073849.

It is an arithmetic number, because the mean of its divisors is an integer number (338374033920).

Almost surely, 2^{12101211123030} is an apocalyptic number.

12101211123030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12101211123030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16241953628160).

12101211123030 is an abundant number, since it is smaller than the sum of its proper divisors (20382696133290).

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

12101211123030 is a wasteful number, since it uses less digits than its factorization.

12101211123030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777026 (or 777023 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12101211123030 its reverse (3032111210121), we get a palindrome (15133322333151).

The spelling of 12101211123030 in words is "twelve trillion, one hundred one billion, two hundred eleven million, one hundred twenty-three thousand, thirty".