7021220221207 has 16 divisors (see below), whose sum is σ = 7195992998400. Its totient is φ = 6847547878080.

The previous prime is 7021220221189. The next prime is 7021220221241.

7021220221207 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7021220221207 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 (7021220221297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14925844 + ... + 15389062.

It is an arithmetic number, because the mean of its divisors is an integer number (449749562400).

Almost surely, 2^{7021220221207} is an apocalyptic number.

7021220221207 is a deficient number, since it is larger than the sum of its proper divisors (174772777193).

7021220221207 is a wasteful number, since it uses less digits than its factorization.

7021220221207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464406.

The product of its (nonzero) digits is 3136, while the sum is 28.

It can be divided in two parts, 7021220 and 221207, that added together give a palindrome (7242427).

The spelling of 7021220221207 in words is "seven trillion, twenty-one billion, two hundred twenty million, two hundred twenty-one thousand, two hundred seven".