111221415401 has 8 divisors (see below), whose sum is σ = 112338480384. Its totient is φ = 110105066880.

The previous prime is 111221415373. The next prime is 111221415407. The reversal of 111221415401 is 104514122111.

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 111221415401 - 2⁶ = 111221415337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111221415407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135680 + ... + 490766.

It is an arithmetic number, because the mean of its divisors is an integer number (14042310048).

Almost surely, 2^111221415401 is an apocalyptic number.

It is an amenable number.

111221415401 is a deficient number, since it is larger than the sum of its proper divisors (1117064983).

111221415401 is a wasteful number, since it uses less digits than its factorization.

111221415401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358231.

The product of its (nonzero) digits is 320, while the sum is 23.

Adding to 111221415401 its reverse (104514122111), we get a palindrome (215735537512).

The spelling of 111221415401 in words is "one hundred eleven billion, two hundred twenty-one million, four hundred fifteen thousand, four hundred one".