7321021012 has 24 divisors (see below), whose sum is σ = 13013142912. Its totient is φ = 3603146400.

The previous prime is 7321021009. The next prime is 7321021013. The reversal of 7321021012 is 2101201237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7321021013) 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, 158778 + ... + 199630.

It is an arithmetic number, because the mean of its divisors is an integer number (542214288).

Almost surely, 2^7321021012 is an apocalyptic number.

It is an amenable number.

7321021012 is a deficient number, since it is larger than the sum of its proper divisors (5692121900).

7321021012 is a wasteful number, since it uses less digits than its factorization.

7321021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41559 (or 41557 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 7321021012 is about 85562.9651893855. The cubic root of 7321021012 is about 1941.7376477955.

Adding to 7321021012 its reverse (2101201237), we get a palindrome (9422222249).

The spelling of 7321021012 in words is "seven billion, three hundred twenty-one million, twenty-one thousand, twelve".