12212330442 has 32 divisors (see below), whose sum is σ = 26324198208. Its totient is φ = 3754680576.

The previous prime is 12212330407. The next prime is 12212330467. The reversal of 12212330442 is 24403321221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39058 + ... + 161090.

It is an arithmetic number, because the mean of its divisors is an integer number (822631194).

Almost surely, 2^12212330442 is an apocalyptic number.

12212330442 is an abundant number, since it is smaller than the sum of its proper divisors (14111867766).

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

12212330442 is a wasteful number, since it uses less digits than its factorization.

12212330442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123334.

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

Adding to 12212330442 its reverse (24403321221), we get a palindrome (36615651663).

The spelling of 12212330442 in words is "twelve billion, two hundred twelve million, three hundred thirty thousand, four hundred forty-two".