121100232223 has 4 divisors (see below), whose sum is σ = 122171915808. Its totient is φ = 120028548640.

The previous prime is 121100232217. The next prime is 121100232259. The reversal of 121100232223 is 322232001121.

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 121100232223 - 2⁵ = 121100232191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121100232223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100232283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535841623 + ... + 535841848.

It is an arithmetic number, because the mean of its divisors is an integer number (30542978952).

Almost surely, 2^121100232223 is an apocalyptic number.

121100232223 is a deficient number, since it is larger than the sum of its proper divisors (1071683585).

121100232223 is a wasteful number, since it uses less digits than its factorization.

121100232223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071683584.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 121100232223 its reverse (322232001121), we get a palindrome (443332233344).

It can be divided in two parts, 1211002 and 32223, that added together give a square (1243225 = 1115²).

The spelling of 121100232223 in words is "one hundred twenty-one billion, one hundred million, two hundred thirty-two thousand, two hundred twenty-three".