117220464421 has 4 divisors (see below), whose sum is σ = 117222103692. Its totient is φ = 117218825152.

The previous prime is 117220464407. The next prime is 117220464469. The reversal of 117220464421 is 124464022711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64589681025 + 52630783396 = 254145^2 + 229414^2 .

It is a cyclic number.

It is not a de Polignac number, because 117220464421 - 2¹³ = 117220456229 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 (117220404421) 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 3 ways as a sum of consecutive naturals, for example, 707236 + ... + 857101.

It is an arithmetic number, because the mean of its divisors is an integer number (29305525923).

Almost surely, 2^117220464421 is an apocalyptic number.

It is an amenable number.

117220464421 is a deficient number, since it is larger than the sum of its proper divisors (1639271).

117220464421 is an equidigital number, since it uses as much as digits as its factorization.

117220464421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639270.

The product of its (nonzero) digits is 21504, while the sum is 34.

The spelling of 117220464421 in words is "one hundred seventeen billion, two hundred twenty million, four hundred sixty-four thousand, four hundred twenty-one".