7021221327 has 12 divisors (see below), whose sum is σ = 10155723760. Its totient is φ = 4674371328.

The previous prime is 7021221307. The next prime is 7021221353. The reversal of 7021221327 is 7231221207.

It is not a de Polignac number, because 7021221327 - 2⁸ = 7021221071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7021221327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7021221307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 530002 + ... + 543087.

Almost surely, 2^7021221327 is an apocalyptic number.

7021221327 is a deficient number, since it is larger than the sum of its proper divisors (3134502433).

7021221327 is a wasteful number, since it uses less digits than its factorization.

7021221327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073822 (or 1073819 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 7021221327 is about 83792.7283658910. The cubic root of 7021221327 is about 1914.8623248832.

The spelling of 7021221327 in words is "seven billion, twenty-one million, two hundred twenty-one thousand, three hundred twenty-seven".