121223001210231 has 32 divisors (see below), whose sum is σ = 163011176939520. Its totient is φ = 80125937289216.

The previous prime is 121223001210221. The next prime is 121223001210251. The reversal of 121223001210231 is 132012100322121.

It is not a de Polignac number, because 121223001210231 - 2⁶ = 121223001210167 is a prime.

It is a super-2 number, since 2×121223001210231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121223001210198 and 121223001210207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121223001210211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5954845705 + ... + 5954866061.

It is an arithmetic number, because the mean of its divisors is an integer number (5094099279360).

Almost surely, 2^{121223001210231} is an apocalyptic number.

121223001210231 is a deficient number, since it is larger than the sum of its proper divisors (41788175729289).

121223001210231 is a wasteful number, since it uses less digits than its factorization.

121223001210231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30063.

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

Adding to 121223001210231 its reverse (132012100322121), we get a palindrome (253235101532352).

The spelling of 121223001210231 in words is "one hundred twenty-one trillion, two hundred twenty-three billion, one million, two hundred ten thousand, two hundred thirty-one".