121212344 has 32 divisors (see below), whose sum is σ = 256489200. Its totient is φ = 53195520.

The previous prime is 121212341. The next prime is 121212347. The reversal of 121212344 is 443212121.

It is an interprime number because it is at equal distance from previous prime (121212341) and next prime (121212347).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121212341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21197 + ... + 26300.

Almost surely, 2^121212344 is an apocalyptic number.

It is an amenable number.

121212344 is an abundant number, since it is smaller than the sum of its proper divisors (135276856).

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

121212344 is a wasteful number, since it uses less digits than its factorization.

121212344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47543 (or 47539 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 121212344 is about 11009.6477691160. The cubic root of 121212344 is about 494.8979063670.

Adding to 121212344 its reverse (443212121), we get a palindrome (564424465).

The spelling of 121212344 in words is "one hundred twenty-one million, two hundred twelve thousand, three hundred forty-four".