222840651 has 8 divisors (see below), whose sum is σ = 324131904. Its totient is φ = 135054920.

The previous prime is 222840649. The next prime is 222840691. The reversal of 222840651 is 156048222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222840651 - 2¹ = 222840649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222840601) 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, 3376341 + ... + 3376406.

It is an arithmetic number, because the mean of its divisors is an integer number (40516488).

Almost surely, 2^222840651 is an apocalyptic number.

222840651 is a deficient number, since it is larger than the sum of its proper divisors (101291253).

222840651 is a wasteful number, since it uses less digits than its factorization.

222840651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6752761.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 222840651 is about 14927.8481704498. The cubic root of 222840651 is about 606.2682236914.

Adding to 222840651 its reverse (156048222), we get a palindrome (378888873).

The spelling of 222840651 in words is "two hundred twenty-two million, eight hundred forty thousand, six hundred fifty-one".