22750222 has 8 divisors (see below), whose sum is σ = 37227672. Its totient is φ = 10341000.

The previous prime is 22750213. The next prime is 22750241. The reversal of 22750222 is 22205722.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1034101 = 22750222 / (2 + 2 + 7 + 5 + 0 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 22750193 and 22750202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517029 + ... + 517072.

It is an arithmetic number, because the mean of its divisors is an integer number (4653459).

Almost surely, 2^22750222 is an apocalyptic number.

22750222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22750222 is a deficient number, since it is larger than the sum of its proper divisors (14477450).

22750222 is a wasteful number, since it uses less digits than its factorization.

22750222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034114.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 22750222 is about 4769.7192789513. The cubic root of 22750222 is about 283.3534770761.

Adding to 22750222 its reverse (22205722), we get a palindrome (44955944).

The spelling of 22750222 in words is "twenty-two million, seven hundred fifty thousand, two hundred twenty-two".