11212212234 has 8 divisors (see below), whose sum is σ = 22424424480. Its totient is φ = 3737404076.

The previous prime is 11212212133. The next prime is 11212212239. The reversal of 11212212234 is 43221221211.

It is a happy number.

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

11212212234 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 11212212234.

It is not an unprimeable number, because it can be changed into a prime (11212212239) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 934351014 + ... + 934351025.

It is an arithmetic number, because the mean of its divisors is an integer number (2803053060).

Almost surely, 2^11212212234 is an apocalyptic number.

11212212234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11212212234 is a wasteful number, since it uses less digits than its factorization.

11212212234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868702044.

The product of its digits is 384, while the sum is 21.

Adding to 11212212234 its reverse (43221221211), we get a palindrome (54433433445).

It can be divided in two parts, 11212 and 212234, that added together give a triangular number (223446 = T₆₆₈).

The spelling of 11212212234 in words is "eleven billion, two hundred twelve million, two hundred twelve thousand, two hundred thirty-four".