222404131 has 8 divisors (see below), whose sum is σ = 228662784. Its totient is φ = 216185280.

The previous prime is 222404111. The next prime is 222404173. The reversal of 222404131 is 131404222.

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 222404131 - 2¹³ = 222395939 is a prime.

It is a super-2 number, since 2×222404131² = 98927194971730322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222404099 and 222404108.

It is not an unprimeable number, because it can be changed into a prime (222404111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1566 + ... + 21148.

It is an arithmetic number, because the mean of its divisors is an integer number (28582848).

Almost surely, 2^222404131 is an apocalyptic number.

222404131 is a deficient number, since it is larger than the sum of its proper divisors (6258653).

222404131 is a wasteful number, since it uses less digits than its factorization.

222404131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19901.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 222404131 is about 14913.2200077649. The cubic root of 222404131 is about 605.8720942935.

Adding to 222404131 its reverse (131404222), we get a palindrome (353808353).

Subtracting from 222404131 its reverse (131404222), we obtain a palindrome (90999909).

The spelling of 222404131 in words is "two hundred twenty-two million, four hundred four thousand, one hundred thirty-one".