111223421121 has 8 divisors (see below), whose sum is σ = 148304581344. Its totient is φ = 74145604160.

The previous prime is 111223421081. The next prime is 111223421159. The reversal of 111223421121 is 121124322111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111223421121 - 2³¹ = 109075937473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111223421191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757131 + ... + 892016.

It is an arithmetic number, because the mean of its divisors is an integer number (18538072668).

Almost surely, 2^111223421121 is an apocalyptic number.

It is an amenable number.

111223421121 is a deficient number, since it is larger than the sum of its proper divisors (37081160223).

111223421121 is a wasteful number, since it uses less digits than its factorization.

111223421121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671631.

The product of its digits is 192, while the sum is 21.

Adding to 111223421121 its reverse (121124322111), we get a palindrome (232347743232).

The spelling of 111223421121 in words is "one hundred eleven billion, two hundred twenty-three million, four hundred twenty-one thousand, one hundred twenty-one".