222554431 has 16 divisors (see below), whose sum is σ = 247927680. Its totient is φ = 198067680.

The previous prime is 222554411. The next prime is 222554461. The reversal of 222554431 is 134455222.

It is a cyclic number.

It is not a de Polignac number, because 222554431 - 2²³ = 214165823 is a prime.

It is a super-2 number, since 2×222554431² = 99060949515467522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222554431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222554411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198685 + ... + 199801.

It is an arithmetic number, because the mean of its divisors is an integer number (15495480).

Almost surely, 2^222554431 is an apocalyptic number.

222554431 is a deficient number, since it is larger than the sum of its proper divisors (25373249).

222554431 is a wasteful number, since it uses less digits than its factorization.

222554431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494.

The product of its digits is 9600, while the sum is 28.

The square root of 222554431 is about 14918.2583098698. The cubic root of 222554431 is about 606.0085457011.

The spelling of 222554431 in words is "two hundred twenty-two million, five hundred fifty-four thousand, four hundred thirty-one".