111221342401 has 8 divisors (see below), whose sum is σ = 119808214400. Its totient is φ = 102638953872.

The previous prime is 111221342389. The next prime is 111221342413. The reversal of 111221342401 is 104243122111.

It is an interprime number because it is at equal distance from previous prime (111221342389) and next prime (111221342413).

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

It is not a de Polignac number, because 111221342401 - 2¹⁷ = 111221211329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111221342431) 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, 1069251 + ... + 1168648.

It is an arithmetic number, because the mean of its divisors is an integer number (14976026800).

Almost surely, 2^111221342401 is an apocalyptic number.

It is an amenable number.

111221342401 is a deficient number, since it is larger than the sum of its proper divisors (8586871999).

111221342401 is a wasteful number, since it uses less digits than its factorization.

111221342401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241735.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 111221342401 its reverse (104243122111), we get a palindrome (215464464512).

The spelling of 111221342401 in words is "one hundred eleven billion, two hundred twenty-one million, three hundred forty-two thousand, four hundred one".