111220121086 has 8 divisors (see below), whose sum is σ = 168941956320. Its totient is φ = 54906135648.

The previous prime is 111220121059. The next prime is 111220121087. The reversal of 111220121086 is 680121022111.

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

It is a self number, because there is not a number n which added to its sum of digits gives 111220121086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220121087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351962251 + ... + 351962566.

It is an arithmetic number, because the mean of its divisors is an integer number (21117744540).

Almost surely, 2^111220121086 is an apocalyptic number.

111220121086 is a deficient number, since it is larger than the sum of its proper divisors (57721835234).

111220121086 is an equidigital number, since it uses as much as digits as its factorization.

111220121086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703924898.

The product of its (nonzero) digits is 384, while the sum is 25.

Adding to 111220121086 its reverse (680121022111), we get a palindrome (791341143197).

The spelling of 111220121086 in words is "one hundred eleven billion, two hundred twenty million, one hundred twenty-one thousand, eighty-six".