1012224321 has 12 divisors (see below), whose sum is σ = 1466444772. Its totient is φ = 672811776.

The previous prime is 1012224313. The next prime is 1012224337. The reversal of 1012224321 is 1234222101.

It is a happy number.

1012224321 is a `hidden beast` number, since 10 + 1 + 222 + 432 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 114383025 + 897841296 = 10695^2 + 29964^2 .

It is not a de Polignac number, because 1012224321 - 2³ = 1012224313 is a prime.

It is a super-2 number, since 2×1012224321² = 2049196152047822082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012224294 and 1012224303.

It is not an unprimeable number, because it can be changed into a prime (1012224361) 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 11 ways as a sum of consecutive naturals, for example, 163836 + ... + 169901.

It is an arithmetic number, because the mean of its divisors is an integer number (122203731).

Almost surely, 2^1012224321 is an apocalyptic number.

It is an amenable number.

1012224321 is a deficient number, since it is larger than the sum of its proper divisors (454220451).

1012224321 is a wasteful number, since it uses less digits than its factorization.

1012224321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334080 (or 334077 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1012224321 is about 31815.4729809255. The cubic root of 1012224321 is about 1004.0582817365.

Adding to 1012224321 its reverse (1234222101), we get a palindrome (2246446422).

It can be divided in two parts, 10122 and 24321, that added together give a palindrome (34443).

The spelling of 1012224321 in words is "one billion, twelve million, two hundred twenty-four thousand, three hundred twenty-one".