222541111125 has 80 divisors (see below), whose sum is σ = 426096328944. Its totient is φ = 115480598400.

The previous prime is 222541111103. The next prime is 222541111127. The reversal of 222541111125 is 521111145222.

222541111125 is a `hidden beast` number, since 2 + 2 + 2 + 541 + 1 + 1 + 112 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 5651581329 + 216889529796 = 75177^2 + 465714^2 .

It is not a de Polignac number, because 222541111125 - 2⁷ = 222541110997 is a prime.

It is a super-2 number, since 2×222541111125² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222541111127) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 77607 + ... + 671643.

Almost surely, 2^222541111125 is an apocalyptic number.

222541111125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222541111125 is a deficient number, since it is larger than the sum of its proper divisors (203555217819).

222541111125 is an equidigital number, since it uses as much as digits as its factorization.

222541111125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594101 (or 594082 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

Adding to 222541111125 its reverse (521111145222), we get a palindrome (743652256347).

The spelling of 222541111125 in words is "two hundred twenty-two billion, five hundred forty-one million, one hundred eleven thousand, one hundred twenty-five".