121043444 has 6 divisors (see below), whose sum is σ = 211826034. Its totient is φ = 60521720.

The previous prime is 121043441. The next prime is 121043449. The reversal of 121043444 is 444340121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 71199844 + 49843600 = 8438^2 + 7060^2 .

It is a super-2 number, since 2×121043444² = 29303030670762272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121043441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15130427 + ... + 15130434.

It is an arithmetic number, because the mean of its divisors is an integer number (35304339).

Almost surely, 2^121043444 is an apocalyptic number.

It is an amenable number.

121043444 is a deficient number, since it is larger than the sum of its proper divisors (90782590).

121043444 is a wasteful number, since it uses less digits than its factorization.

121043444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30260865 (or 30260863 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 121043444 is about 11001.9745500524. The cubic root of 121043444 is about 494.6679322343.

Adding to 121043444 its reverse (444340121), we get a palindrome (565383565).

The spelling of 121043444 in words is "one hundred twenty-one million, forty-three thousand, four hundred forty-four".