22122330 has 16 divisors (see below), whose sum is σ = 53093664. Its totient is φ = 5899280.

The previous prime is 22122311. The next prime is 22122341. The reversal of 22122330 is 3322122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

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, 368676 + ... + 368735.

It is an arithmetic number, because the mean of its divisors is an integer number (3318354).

Almost surely, 2^22122330 is an apocalyptic number.

22122330 is an abundant number, since it is smaller than the sum of its proper divisors (30971334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22122330 is a wasteful number, since it uses less digits than its factorization.

22122330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737421.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 22122330 is about 4703.4381041957. The cubic root of 22122330 is about 280.7223271583.

Adding to 22122330 its reverse (3322122), we get a palindrome (25444452).

The spelling of 22122330 in words is "twenty-two million, one hundred twenty-two thousand, three hundred thirty".