121122444 has 24 divisors (see below), whose sum is σ = 292365360. Its totient is φ = 38981824.

The previous prime is 121122413. The next prime is 121122493. The reversal of 121122444 is 444221121.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 121122444.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 173679 + ... + 174374.

It is an arithmetic number, because the mean of its divisors is an integer number (12181890).

Almost surely, 2^121122444 is an apocalyptic number.

It is an amenable number.

121122444 is an abundant number, since it is smaller than the sum of its proper divisors (171242916).

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

121122444 is a wasteful number, since it uses less digits than its factorization.

121122444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348089 (or 348087 counting only the distinct ones).

The product of its digits is 512, while the sum is 21.

The square root of 121122444 is about 11005.5642290616. The cubic root of 121122444 is about 494.7755251964.

Adding to 121122444 its reverse (444221121), we get a palindrome (565343565).

The spelling of 121122444 in words is "one hundred twenty-one million, one hundred twenty-two thousand, four hundred forty-four".