111225401455231 has 32 divisors (see below), whose sum is σ = 129331053139968. Its totient is φ = 93677058109440.

The previous prime is 111225401455171. The next prime is 111225401455283. The reversal of 111225401455231 is 132554104522111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111225401455231 - 2²⁷ = 111225267237503 is a prime.

It is a super-2 number, since 2×111225401455231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111225401405231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4058270730 + ... + 4058298136.

It is an arithmetic number, because the mean of its divisors is an integer number (4041595410624).

Almost surely, 2^{111225401455231} is an apocalyptic number.

111225401455231 is a deficient number, since it is larger than the sum of its proper divisors (18105651684737).

111225401455231 is a wasteful number, since it uses less digits than its factorization.

111225401455231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36871.

The product of its (nonzero) digits is 48000, while the sum is 37.

Adding to 111225401455231 its reverse (132554104522111), we get a palindrome (243779505977342).

The spelling of 111225401455231 in words is "one hundred eleven trillion, two hundred twenty-five billion, four hundred one million, four hundred fifty-five thousand, two hundred thirty-one".