111121100001121 has 8 divisors (see below), whose sum is σ = 126995901342464. Its totient is φ = 95246388280800.

The previous prime is 111121100001091. The next prime is 111121100001143. The reversal of 111121100001121 is 121100001121111.

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 111121100001121 - 2²³ = 111121091612513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111121100001521) 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, 19726980 + ... + 24726421.

It is an arithmetic number, because the mean of its divisors is an integer number (15874487667808).

Almost surely, 2^{111121100001121} is an apocalyptic number.

It is an amenable number.

111121100001121 is a deficient number, since it is larger than the sum of its proper divisors (15874801341343).

111121100001121 is an equidigital number, since it uses as much as digits as its factorization.

111121100001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44810511.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111121100001121 its reverse (121100001121111), we get a palindrome (232221101122232).

It can be divided in two parts, 111 and 121100001121, that multiplied together give a palindrome (13442100124431).

The spelling of 111121100001121 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred million, one thousand, one hundred twenty-one".