222040551 has 8 divisors (see below), whose sum is σ = 308926080. Its totient is φ = 141591032.

The previous prime is 222040537. The next prime is 222040579. The reversal of 222040551 is 155040222.

It is a happy number.

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 222040551 - 2²⁶ = 154931687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222040531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1608921 + ... + 1609058.

It is an arithmetic number, because the mean of its divisors is an integer number (38615760).

Almost surely, 2^222040551 is an apocalyptic number.

222040551 is a deficient number, since it is larger than the sum of its proper divisors (86885529).

222040551 is a wasteful number, since it uses less digits than its factorization.

222040551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218005.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 222040551 is about 14901.0251660750. The cubic root of 222040551 is about 605.5417600177.

Adding to 222040551 its reverse (155040222), we get a palindrome (377080773).

The spelling of 222040551 in words is "two hundred twenty-two million, forty thousand, five hundred fifty-one".