1024051221 has 16 divisors (see below), whose sum is σ = 1532137920. Its totient is φ = 675939600.

The previous prime is 1024051211. The next prime is 1024051243. The reversal of 1024051221 is 1221504201.

It is not a de Polignac number, because 1024051221 - 2⁶ = 1024051157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1024051194 and 1024051203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024051201) 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 15 ways as a sum of consecutive naturals, for example, 185035 + ... + 190488.

It is an arithmetic number, because the mean of its divisors is an integer number (95758620).

Almost surely, 2^1024051221 is an apocalyptic number.

It is an amenable number.

1024051221 is a deficient number, since it is larger than the sum of its proper divisors (508086699).

1024051221 is a wasteful number, since it uses less digits than its factorization.

1024051221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375633 (or 375627 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1024051221 is about 32000.8003181170. The cubic root of 1024051221 is about 1007.9536454732.

Adding to 1024051221 its reverse (1221504201), we get a palindrome (2245555422).

The spelling of 1024051221 in words is "one billion, twenty-four million, fifty-one thousand, two hundred twenty-one".