12212323242 has 32 divisors (see below), whose sum is σ = 27917740032. Its totient is φ = 3488752944.

The previous prime is 12212323217. The next prime is 12212323259. The reversal of 12212323242 is 24232321221.

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 15 ways as a sum of consecutive naturals, for example, 382083 + ... + 412809.

It is an arithmetic number, because the mean of its divisors is an integer number (872429376).

Almost surely, 2^12212323242 is an apocalyptic number.

12212323242 is an abundant number, since it is smaller than the sum of its proper divisors (15705416790).

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

12212323242 is a wasteful number, since it uses less digits than its factorization.

12212323242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40202.

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

Adding to 12212323242 its reverse (24232321221), we get a palindrome (36444644463).

The spelling of 12212323242 in words is "twelve billion, two hundred twelve million, three hundred twenty-three thousand, two hundred forty-two".