1484851520221 has 16 divisors (see below), whose sum is σ = 1518260546880. Its totient is φ = 1451738125440.

The previous prime is 1484851520219. The next prime is 1484851520237. The reversal of 1484851520221 is 1220251584841.

It is a cyclic number.

It is not a de Polignac number, because 1484851520221 - 2¹ = 1484851520219 is a prime.

It is a super-2 number, since 2×1484851520221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1484851527221) 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, 8187951 + ... + 8367331.

It is an arithmetic number, because the mean of its divisors is an integer number (94891284180).

Almost surely, 2^{1484851520221} is an apocalyptic number.

It is an amenable number.

1484851520221 is a deficient number, since it is larger than the sum of its proper divisors (33409026659).

1484851520221 is a wasteful number, since it uses less digits than its factorization.

1484851520221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180204.

The product of its (nonzero) digits is 204800, while the sum is 43.

It can be divided in two parts, 14848515 and 20221, that added together give a square (14868736 = 3856²).

The spelling of 1484851520221 in words is "one trillion, four hundred eighty-four billion, eight hundred fifty-one million, five hundred twenty thousand, two hundred twenty-one".