10254433221 has 20 divisors (see below), whose sum is σ = 15458899500. Its totient is φ = 6773564736.

The previous prime is 10254433157. The next prime is 10254433223. The reversal of 10254433221 is 12233445201.

10254433221 is a `hidden beast` number, since 1 + 0 + 2 + 5 + 4 + 433 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3179268225 + 7075164996 = 56385^2 + 84114^2 .

It is not a de Polignac number, because 10254433221 - 2⁶ = 10254433157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10254433223) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 571896 + ... + 589553.

It is an arithmetic number, because the mean of its divisors is an integer number (772944975).

Almost surely, 2^10254433221 is an apocalyptic number.

It is an amenable number.

10254433221 is a deficient number, since it is larger than the sum of its proper divisors (5204466279).

10254433221 is a wasteful number, since it uses less digits than its factorization.

10254433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161570 (or 1161561 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 10254433221 its reverse (12233445201), we get a palindrome (22487878422).

The spelling of 10254433221 in words is "ten billion, two hundred fifty-four million, four hundred thirty-three thousand, two hundred twenty-one".