111022211221001 has 12 divisors (see below), whose sum is σ = 115000471624272. Its totient is φ = 107177175214704.

The previous prime is 111022211220997. The next prime is 111022211221039. The reversal of 111022211221001 is 100122112220111.

It is not a de Polignac number, because 111022211221001 - 2² = 111022211220997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111022211221081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4865015 + ... + 15675228.

It is an arithmetic number, because the mean of its divisors is an integer number (9583372635356).

Almost surely, 2^{111022211221001} is an apocalyptic number.

It is an amenable number.

111022211221001 is a deficient number, since it is larger than the sum of its proper divisors (3978260403271).

111022211221001 is an equidigital number, since it uses as much as digits as its factorization.

111022211221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20546728 (or 20546699 counting only the distinct ones).

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

Adding to 111022211221001 its reverse (100122112220111), we get a palindrome (211144323441112).

The spelling of 111022211221001 in words is "one hundred eleven trillion, twenty-two billion, two hundred eleven million, two hundred twenty-one thousand, one".