121212301020231 has 64 divisors (see below), whose sum is σ = 170832800286720. Its totient is φ = 76335220093440.

The previous prime is 121212301020169. The next prime is 121212301020259. The reversal of 121212301020231 is 132020103212121.

It is not a de Polignac number, because 121212301020231 - 2⁴³ = 112416207998023 is a prime.

It is a super-2 number, since 2×121212301020231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121212301020198 and 121212301020207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121212301020281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5544164206 + ... + 5544186068.

It is an arithmetic number, because the mean of its divisors is an integer number (2669262504480).

Almost surely, 2^{121212301020231} is an apocalyptic number.

121212301020231 is a deficient number, since it is larger than the sum of its proper divisors (49620499266489).

121212301020231 is a wasteful number, since it uses less digits than its factorization.

121212301020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27456.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121212301020231 its reverse (132020103212121), we get a palindrome (253232404232352).

The spelling of 121212301020231 in words is "one hundred twenty-one trillion, two hundred twelve billion, three hundred one million, twenty thousand, two hundred thirty-one".