111233204121 has 16 divisors (see below), whose sum is σ = 159858062336. Its totient is φ = 68391806976.

The previous prime is 111233204113. The next prime is 111233204167. The reversal of 111233204121 is 121402332111.

It is not a de Polignac number, because 111233204121 - 2³ = 111233204113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111233204171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191865 + ... + 1281798.

It is an arithmetic number, because the mean of its divisors is an integer number (9991128896).

Almost surely, 2^111233204121 is an apocalyptic number.

It is an amenable number.

111233204121 is a deficient number, since it is larger than the sum of its proper divisors (48624858215).

111233204121 is a wasteful number, since it uses less digits than its factorization.

111233204121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2474832.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 111233204121 its reverse (121402332111), we get a palindrome (232635536232).

The spelling of 111233204121 in words is "one hundred eleven billion, two hundred thirty-three million, two hundred four thousand, one hundred twenty-one".