7012323221 has 8 divisors (see below), whose sum is σ = 7256845080. Its totient is φ = 6767982592.

The previous prime is 7012323209. The next prime is 7012323223. The reversal of 7012323221 is 1223232107.

It can be written as a sum of positive squares in 4 ways, for example, as 3293152996 + 3719170225 = 57386^2 + 60985^2 .

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-7012323221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7012323223) 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, 35921 + ... + 123753.

It is an arithmetic number, because the mean of its divisors is an integer number (907105635).

Almost surely, 2^7012323221 is an apocalyptic number.

It is an amenable number.

7012323221 is a deficient number, since it is larger than the sum of its proper divisors (244521859).

7012323221 is a wasteful number, since it uses less digits than its factorization.

7012323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90615.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 7012323221 is about 83739.6156009806. The cubic root of 7012323221 is about 1914.0530710510.

Adding to 7012323221 its reverse (1223232107), we get a palindrome (8235555328).

The spelling of 7012323221 in words is "seven billion, twelve million, three hundred twenty-three thousand, two hundred twenty-one".