111221320101 has 8 divisors (see below), whose sum is σ = 150508453344. Its totient is φ = 73040866800.

The previous prime is 111221320073. The next prime is 111221320109. The reversal of 111221320101 is 101023122111.

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

It is not a de Polignac number, because 111221320101 - 2⁶ = 111221320037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221320109) 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, 276669750 + ... + 276670151.

It is an arithmetic number, because the mean of its divisors is an integer number (18813556668).

Almost surely, 2^111221320101 is an apocalyptic number.

It is an amenable number.

111221320101 is a deficient number, since it is larger than the sum of its proper divisors (39287133243).

111221320101 is an equidigital number, since it uses as much as digits as its factorization.

111221320101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553339971.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 111221320101 its reverse (101023122111), we get a palindrome (212244442212).

The spelling of 111221320101 in words is "one hundred eleven billion, two hundred twenty-one million, three hundred twenty thousand, one hundred one".