121322223 has 36 divisors (see below), whose sum is σ = 197894424. Its totient is φ = 71517600.

The previous prime is 121322213. The next prime is 121322237. The reversal of 121322223 is 322223121.

121322223 is a `hidden beast` number, since 121 + 322 + 223 = 666.

It is not a de Polignac number, because 121322223 - 2⁵ = 121322191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121322196 and 121322205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121322213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 38788 + ... + 41798.

Almost surely, 2^121322223 is an apocalyptic number.

121322223 is a deficient number, since it is larger than the sum of its proper divisors (76572201).

121322223 is a wasteful number, since it uses less digits than its factorization.

121322223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076 (or 3062 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 121322223 is about 11014.6367620544. The cubic root of 121322223 is about 495.0474028678.

Adding to 121322223 its reverse (322223121), we get a palindrome (443545344).

It can be divided in two parts, 1213 and 22223, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 121322223 in words is "one hundred twenty-one million, three hundred twenty-two thousand, two hundred twenty-three".