721534214202224 has 20 divisors (see below), whose sum is σ = 1398093902691840. Its totient is φ = 360735787701120.

The previous prime is 721534214202173. The next prime is 721534214202229. The reversal of 721534214202224 is 422202412435127.

It is a super-2 number, since 2×721534214202224² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (721534214202229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1957272437 + ... + 1957641044.

It is an arithmetic number, because the mean of its divisors is an integer number (69904695134592).

Almost surely, 2^{721534214202224} is an apocalyptic number.

It is an amenable number.

721534214202224 is a deficient number, since it is larger than the sum of its proper divisors (676559688489616).

721534214202224 is a wasteful number, since it uses less digits than its factorization.

721534214202224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914925008 (or 3914925002 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 41.

The spelling of 721534214202224 in words is "seven hundred twenty-one trillion, five hundred thirty-four billion, two hundred fourteen million, two hundred two thousand, two hundred twenty-four".