121233212231 has 2 divisors, whose sum is σ = 121233212232. Its totient is φ = 121233212230.

The previous prime is 121233212189. The next prime is 121233212251. The reversal of 121233212231 is 132212332121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121233212231 - 2¹⁴ = 121233195847 is a prime.

It is a super-2 number, since 2×121233212231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121233212197 and 121233212206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121233212251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60616606115 + 60616606116.

It is an arithmetic number, because the mean of its divisors is an integer number (60616606116).

Almost surely, 2^121233212231 is an apocalyptic number.

121233212231 is a deficient number, since it is larger than the sum of its proper divisors (1).

121233212231 is an equidigital number, since it uses as much as digits as its factorization.

121233212231 is an evil number, because the sum of its binary digits is even.

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

Adding to 121233212231 its reverse (132212332121), we get a palindrome (253445544352).

The spelling of 121233212231 in words is "one hundred twenty-one billion, two hundred thirty-three million, two hundred twelve thousand, two hundred thirty-one".