12121012331230 has 48 divisors (see below), whose sum is σ = 24388040643120. Its totient is φ = 4332935045120.

The previous prime is 12121012331177. The next prime is 12121012331249. The reversal of 12121012331230 is 3213321012121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 84821539 + ... + 84964318.

It is an arithmetic number, because the mean of its divisors is an integer number (508084180065).

Almost surely, 2^{12121012331230} is an apocalyptic number.

12121012331230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121012331230 is an abundant number, since it is smaller than the sum of its proper divisors (12267028311890).

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

12121012331230 is a wasteful number, since it uses less digits than its factorization.

12121012331230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169785945 (or 169785934 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12121012331230 its reverse (3213321012121), we get a palindrome (15334333343351).

The spelling of 12121012331230 in words is "twelve trillion, one hundred twenty-one billion, twelve million, three hundred thirty-one thousand, two hundred thirty".