7001221007 has 8 divisors (see below), whose sum is σ = 7640261760. Its totient is φ = 6362607960.

The previous prime is 7001220943. The next prime is 7001221013.

7001221007 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7001221007 - 2⁶ = 7001220943 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 7001221007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7001221057) 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 7 ways as a sum of consecutive naturals, for example, 72203 + ... + 138620.

It is an arithmetic number, because the mean of its divisors is an integer number (955032720).

Almost surely, 2^7001221007 is an apocalyptic number.

7001221007 is a deficient number, since it is larger than the sum of its proper divisors (639040753).

7001221007 is a wasteful number, since it uses less digits than its factorization.

7001221007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213853.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 7001221007 is about 83673.2992477290. The cubic root of 7001221007 is about 1913.0424002282.

It can be divided in two parts, 70012 and 21007, that added together give a palindrome (91019).

The spelling of 7001221007 in words is "seven billion, one million, two hundred twenty-one thousand, seven".