7221001670144 has 40 divisors (see below), whose sum is σ = 14672440557720. Its totient is φ = 3549305890816.

The previous prime is 7221001670107. The next prime is 7221001670167. The reversal of 7221001670144 is 4410761001227.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 119491139 + ... + 119551554.

It is an arithmetic number, because the mean of its divisors is an integer number (366811013943).

Almost surely, 2^{7221001670144} is an apocalyptic number.

It is an amenable number.

7221001670144 is an abundant number, since it is smaller than the sum of its proper divisors (7451438887576).

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

7221001670144 is an equidigital number, since it uses as much as digits as its factorization.

7221001670144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239042770 (or 239042754 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The spelling of 7221001670144 in words is "seven trillion, two hundred twenty-one billion, one million, six hundred seventy thousand, one hundred forty-four".