120821044 has 12 divisors (see below), whose sum is σ = 211881600. Its totient is φ = 60283448.

The previous prime is 120821011. The next prime is 120821089. The reversal of 120821044 is 440128021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29614 + ... + 33445.

It is an arithmetic number, because the mean of its divisors is an integer number (17656800).

Almost surely, 2^120821044 is an apocalyptic number.

It is an amenable number.

120821044 is a deficient number, since it is larger than the sum of its proper divisors (91060556).

120821044 is a wasteful number, since it uses less digits than its factorization.

120821044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63542 (or 63540 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 120821044 is about 10991.8626265069. The cubic root of 120821044 is about 494.3647859926.

Adding to 120821044 its reverse (440128021), we get a palindrome (560949065).

The spelling of 120821044 in words is "one hundred twenty million, eight hundred twenty-one thousand, forty-four".