52021220223 has 16 divisors (see below), whose sum is σ = 80613999360. Its totient is φ = 29222573376.

The previous prime is 52021220197. The next prime is 52021220239. The reversal of 52021220223 is 32202212025.

It is not a de Polignac number, because 52021220223 - 2¹⁰ = 52021219199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 52021220223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52021220263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20991990 + ... + 20994467.

It is an arithmetic number, because the mean of its divisors is an integer number (5038374960).

Almost surely, 2^52021220223 is an apocalyptic number.

52021220223 is a deficient number, since it is larger than the sum of its proper divisors (28592779137).

52021220223 is a wasteful number, since it uses less digits than its factorization.

52021220223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41986526.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 52021220223 its reverse (32202212025), we get a palindrome (84223432248).

The spelling of 52021220223 in words is "fifty-two billion, twenty-one million, two hundred twenty thousand, two hundred twenty-three".