121220300321231 has 4 divisors (see below), whose sum is σ = 121308976474992. Its totient is φ = 121131624167472.

The previous prime is 121220300321213. The next prime is 121220300321261. The reversal of 121220300321231 is 132123003022121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121220300321231 is a prime.

It is a super-2 number, since 2×121220300321231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121220300321197 and 121220300321206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220300321261) 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 3 ways as a sum of consecutive naturals, for example, 44338074830 + ... + 44338077563.

It is an arithmetic number, because the mean of its divisors is an integer number (30327244118748).

Almost surely, 2^{121220300321231} is an apocalyptic number.

121220300321231 is a deficient number, since it is larger than the sum of its proper divisors (88676153761).

121220300321231 is an equidigital number, since it uses as much as digits as its factorization.

121220300321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88676153760.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 121220300321231 its reverse (132123003022121), we get a palindrome (253343303343352).

The spelling of 121220300321231 in words is "one hundred twenty-one trillion, two hundred twenty billion, three hundred million, three hundred twenty-one thousand, two hundred thirty-one".