2321221012 has 24 divisors (see below), whose sum is σ = 4534481952. Its totient is φ = 1030562400.

The previous prime is 2321220997. The next prime is 2321221039. The reversal of 2321221012 is 2101221232.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 611539 + ... + 615322.

It is an arithmetic number, because the mean of its divisors is an integer number (188936748).

Almost surely, 2^2321221012 is an apocalyptic number.

2321221012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2321221012 is a deficient number, since it is larger than the sum of its proper divisors (2213260940).

2321221012 is a wasteful number, since it uses less digits than its factorization.

2321221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226919 (or 1226917 counting only the distinct ones).

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

The square root of 2321221012 is about 48179.0515888389. The cubic root of 2321221012 is about 1324.0533904776.

Adding to 2321221012 its reverse (2101221232), we get a palindrome (4422442244).

The spelling of 2321221012 in words is "two billion, three hundred twenty-one million, two hundred twenty-one thousand, twelve".