1012304221 has 8 divisors (see below), whose sum is σ = 1062157824. Its totient is φ = 962937360.

The previous prime is 1012304191. The next prime is 1012304231. The reversal of 1012304221 is 1224032101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012304221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012304195 and 1012304204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012304231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117421 + ... + 125746.

It is an arithmetic number, because the mean of its divisors is an integer number (132769728).

Almost surely, 2^1012304221 is an apocalyptic number.

It is an amenable number.

1012304221 is a deficient number, since it is larger than the sum of its proper divisors (49853603).

1012304221 is a wasteful number, since it uses less digits than its factorization.

1012304221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243371.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1012304221 is about 31816.7286344778. The cubic root of 1012304221 is about 1004.0846995125.

Adding to 1012304221 its reverse (1224032101), we get a palindrome (2236336322).

The spelling of 1012304221 in words is "one billion, twelve million, three hundred four thousand, two hundred twenty-one".