111012201221001 has 8 divisors (see below), whose sum is σ = 148189792645440. Its totient is φ = 73921371971952.

The previous prime is 111012201220997. The next prime is 111012201221003. The reversal of 111012201221001 is 100122102210111.

It is a happy number.

111012201221001 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 111012201221001 - 2² = 111012201220997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111012201221003) 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, 21690540861 + ... + 21690545978.

It is an arithmetic number, because the mean of its divisors is an integer number (18523724080680).

Almost surely, 2^{111012201221001} is an apocalyptic number.

It is an amenable number.

111012201221001 is a deficient number, since it is larger than the sum of its proper divisors (37177591424439).

111012201221001 is an equidigital number, since it uses as much as digits as its factorization.

111012201221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43381087695.

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

Adding to 111012201221001 its reverse (100122102210111), we get a palindrome (211134303431112).

The spelling of 111012201221001 in words is "one hundred eleven trillion, twelve billion, two hundred one million, two hundred twenty-one thousand, one".