111120221000121 has 8 divisors (see below), whose sum is σ = 154602046608960. Its totient is φ = 70859271362352.

The previous prime is 111120221000111. The next prime is 111120221000141. The reversal of 111120221000121 is 121000122021111.

It is a happy number.

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

It is not a de Polignac number, because 111120221000121 - 2⁶ = 111120221000057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111120221000121.

It is not an unprimeable number, because it can be changed into a prime (111120221000111) 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, 805218992686 + ... + 805218992823.

It is an arithmetic number, because the mean of its divisors is an integer number (19325255826120).

Almost surely, 2^{111120221000121} is an apocalyptic number.

It is an amenable number.

111120221000121 is a deficient number, since it is larger than the sum of its proper divisors (43481825608839).

111120221000121 is a wasteful number, since it uses less digits than its factorization.

111120221000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610437985535.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111120221000121 its reverse (121000122021111), we get a palindrome (232120343021232).

The spelling of 111120221000121 in words is "one hundred eleven trillion, one hundred twenty billion, two hundred twenty-one million, one hundred twenty-one", and thus it is an aban number.