111220221211001 has 8 divisors (see below), whose sum is σ = 127352795117184. Its totient is φ = 95148640023840.

The previous prime is 111220221210997. The next prime is 111220221211067. The reversal of 111220221211001 is 100112122022111.

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 111220221211001 - 2² = 111220221210997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111220221211091) 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, 15248175845 + ... + 15248183138.

It is an arithmetic number, because the mean of its divisors is an integer number (15919099389648).

Almost surely, 2^{111220221211001} is an apocalyptic number.

It is an amenable number.

111220221211001 is a deficient number, since it is larger than the sum of its proper divisors (16132573906183).

111220221211001 is an equidigital number, since it uses as much as digits as its factorization.

111220221211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30496359511.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111220221211001 its reverse (100112122022111), we get a palindrome (211332343233112).

The spelling of 111220221211001 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred twenty-one million, two hundred eleven thousand, one".