7221914519044 has 9 divisors (see below), whose sum is σ = 12638359814101. Its totient is φ = 3610954572160.

The previous prime is 7221914519011. The next prime is 7221914519069. The reversal of 7221914519044 is 4409154191227.

The square root of 7221914519044 is 2687362.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7213317520644 + 8596998400 = 2685762^2 + 92720^2 .

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 4702884 + ... + 6046564.

Almost surely, 2^{7221914519044} is an apocalyptic number.

7221914519044 is the 2687362-nd square number.

It is an amenable number.

7221914519044 is a deficient number, since it is larger than the sum of its proper divisors (5416445295057).

7221914519044 is an frugal number, since it uses more digits than its factorization.

7221914519044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687366 (or 1343683 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

Multiplying 7221914519044 by its sum of digits (49), we get a square (353873811433156 = 18811534²).

The spelling of 7221914519044 in words is "seven trillion, two hundred twenty-one billion, nine hundred fourteen million, five hundred nineteen thousand, forty-four".