121140224223 has 4 divisors (see below), whose sum is σ = 161520298968. Its totient is φ = 80760149480.

The previous prime is 121140224221. The next prime is 121140224273. The reversal of 121140224223 is 322422041121.

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

It is a cyclic number.

It is not a de Polignac number, because 121140224223 - 2¹ = 121140224221 is a prime.

It is a super-3 number, since 3×121140224223³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121140224193 and 121140224202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121140224221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20190037368 + ... + 20190037373.

It is an arithmetic number, because the mean of its divisors is an integer number (40380074742).

Almost surely, 2^121140224223 is an apocalyptic number.

121140224223 is a deficient number, since it is larger than the sum of its proper divisors (40380074745).

121140224223 is an equidigital number, since it uses as much as digits as its factorization.

121140224223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40380074744.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 121140224223 its reverse (322422041121), we get a palindrome (443562265344).

The spelling of 121140224223 in words is "one hundred twenty-one billion, one hundred forty million, two hundred twenty-four thousand, two hundred twenty-three".