111210001121 has 16 divisors (see below), whose sum is σ = 117361559040. Its totient is φ = 105242163840.

The previous prime is 111210001117. The next prime is 111210001157. The reversal of 111210001121 is 121100012111.

It is a cyclic number.

It is not a de Polignac number, because 111210001121 - 2² = 111210001117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111210301121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89135 + ... + 479963.

It is an arithmetic number, because the mean of its divisors is an integer number (7335097440).

Almost surely, 2^111210001121 is an apocalyptic number.

It is an amenable number.

111210001121 is a deficient number, since it is larger than the sum of its proper divisors (6151557919).

111210001121 is a wasteful number, since it uses less digits than its factorization.

111210001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391064.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111210001121 its reverse (121100012111), we get a palindrome (232310013232).

The spelling of 111210001121 in words is "one hundred eleven billion, two hundred ten million, one thousand, one hundred twenty-one".