12121003320231 has 16 divisors (see below), whose sum is σ = 17439964698240. Its totient is φ = 7443887347680.

The previous prime is 12121003320221. The next prime is 12121003320259. The reversal of 12121003320231 is 13202330012121.

It is not a de Polignac number, because 12121003320231 - 2¹³ = 12121003312039 is a prime.

It is a super-2 number, since 2×12121003320231² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12121003320198 and 12121003320207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121003320221) 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 15 ways as a sum of consecutive naturals, for example, 316472661 + ... + 316510958.

It is an arithmetic number, because the mean of its divisors is an integer number (1089997793640).

Almost surely, 2^{12121003320231} is an apocalyptic number.

12121003320231 is a deficient number, since it is larger than the sum of its proper divisors (5318961378009).

12121003320231 is a wasteful number, since it uses less digits than its factorization.

12121003320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632984126.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12121003320231 its reverse (13202330012121), we get a palindrome (25323333332352).

The spelling of 12121003320231 in words is "twelve trillion, one hundred twenty-one billion, three million, three hundred twenty thousand, two hundred thirty-one".