7211521314 has 64 divisors (see below), whose sum is σ = 16549315200. Its totient is φ = 2326314816.

The previous prime is 7211521313. The next prime is 7211521381. The reversal of 7211521314 is 4131251127.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (7211521313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238852 + ... + 267344.

It is an arithmetic number, because the mean of its divisors is an integer number (258583050).

Almost surely, 2^7211521314 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7211521314, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8274657600).

7211521314 is an abundant number, since it is smaller than the sum of its proper divisors (9337793886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7211521314 is a wasteful number, since it uses less digits than its factorization.

7211521314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28656 (or 28650 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 7211521314 is about 84920.6765988119. The cubic root of 7211521314 is about 1932.0081931291.

The spelling of 7211521314 in words is "seven billion, two hundred eleven million, five hundred twenty-one thousand, three hundred fourteen".