121112212322223 has 192 divisors, whose sum is σ = 189743135662080. Its totient is φ = 74325081600000.

The previous prime is 121112212322221. The next prime is 121112212322239. The reversal of 121112212322223 is 322223212211121.

121112212322223 is a `hidden beast` number, since 1 + 2 + 1 + 112 + 2 + 1 + 2 + 322 + 223 = 666.

It is not a de Polignac number, because 121112212322223 - 2¹ = 121112212322221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112212322221) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 13007428738 + ... + 13007438048.

It is an arithmetic number, because the mean of its divisors is an integer number (988245498240).

Almost surely, 2^{121112212322223} is an apocalyptic number.

121112212322223 is a deficient number, since it is larger than the sum of its proper divisors (68630923339857).

121112212322223 is a wasteful number, since it uses less digits than its factorization.

121112212322223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9702 (or 9699 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 121112212322223 its reverse (322223212211121), we get a palindrome (443335424533344).

The spelling of 121112212322223 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred twelve million, three hundred twenty-two thousand, two hundred twenty-three".