111220120101 has 8 divisors (see below), whose sum is σ = 150080162400. Its totient is φ = 73253412272.

The previous prime is 111220120069. The next prime is 111220120129. The reversal of 111220120101 is 101021022111.

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 111220120101 - 2⁵ = 111220120069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220120171) 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 7 ways as a sum of consecutive naturals, for example, 223333326 + ... + 223333823.

It is an arithmetic number, because the mean of its divisors is an integer number (18760020300).

Almost surely, 2^111220120101 is an apocalyptic number.

It is an amenable number.

111220120101 is a deficient number, since it is larger than the sum of its proper divisors (38860042299).

111220120101 is an equidigital number, since it uses as much as digits as its factorization.

111220120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446667235.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111220120101 its reverse (101021022111), we get a palindrome (212241142212).

The spelling of 111220120101 in words is "one hundred eleven billion, two hundred twenty million, one hundred twenty thousand, one hundred one".