121111112230 has 16 divisors (see below), whose sum is σ = 218003966640. Its totient is φ = 48443563872.

The previous prime is 121111112219. The next prime is 121111112249. The reversal of 121111112230 is 32211111121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1002841 + ... + 1117099.

It is an arithmetic number, because the mean of its divisors is an integer number (13625247915).

Almost surely, 2^121111112230 is an apocalyptic number.

121111112230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121111112230 is a deficient number, since it is larger than the sum of its proper divisors (96892854410).

121111112230 is a wasteful number, since it uses less digits than its factorization.

121111112230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220263.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 121111112230 its reverse (32211111121), we get a palindrome (153322223351).

The spelling of 121111112230 in words is "one hundred twenty-one billion, one hundred eleven million, one hundred twelve thousand, two hundred thirty".