223021212243020 has 48 divisors (see below), whose sum is σ = 468499941433440. Its totient is φ = 89178888943104.

The previous prime is 223021212243017. The next prime is 223021212243083. The reversal of 223021212243020 is 20342212120322.

It is a super-2 number, since 2×223021212243020² (a number of 29 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1225589882 + ... + 1225771838.

It is an arithmetic number, because the mean of its divisors is an integer number (9760415446530).

Almost surely, 2^{223021212243020} is an apocalyptic number.

223021212243020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223021212243020 is an abundant number, since it is smaller than the sum of its proper divisors (245478729190420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223021212243020 is a wasteful number, since it uses less digits than its factorization.

223021212243020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201962 (or 201960 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 223021212243020 its reverse (20342212120322), we get a palindrome (243363424363342).

The spelling of 223021212243020 in words is "two hundred twenty-three trillion, twenty-one billion, two hundred twelve million, two hundred forty-three thousand, twenty".