121022330231 has 4 divisors (see below), whose sum is σ = 132024360264. Its totient is φ = 110020300200.

The previous prime is 121022330179. The next prime is 121022330239. The reversal of 121022330231 is 132033220121.

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-121022330231 is a prime.

It is a super-2 number, since 2×121022330231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022330239) 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 3 ways as a sum of consecutive naturals, for example, 5501015000 + ... + 5501015021.

It is an arithmetic number, because the mean of its divisors is an integer number (33006090066).

Almost surely, 2^121022330231 is an apocalyptic number.

121022330231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121022330231 is a deficient number, since it is larger than the sum of its proper divisors (11002030033).

121022330231 is a wasteful number, since it uses less digits than its factorization.

121022330231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11002030032.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121022330231 its reverse (132033220121), we get a palindrome (253055550352).

The spelling of 121022330231 in words is "one hundred twenty-one billion, twenty-two million, three hundred thirty thousand, two hundred thirty-one".