22142142330 has 64 divisors (see below), whose sum is σ = 66253897728. Its totient is φ = 4600964160.

The previous prime is 22142142329. The next prime is 22142142359. The reversal of 22142142330 is 3324124122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22142142330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4790362 + ... + 4794981.

It is an arithmetic number, because the mean of its divisors is an integer number (1035217152).

Almost surely, 2^22142142330 is an apocalyptic number.

22142142330 is an abundant number, since it is smaller than the sum of its proper divisors (44111755398).

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

22142142330 is a wasteful number, since it uses less digits than its factorization.

22142142330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9585371.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 22142142330 its reverse (3324124122), we get a palindrome (25466266452).

The spelling of 22142142330 in words is "twenty-two billion, one hundred forty-two million, one hundred forty-two thousand, three hundred thirty".