223021221143 has 16 divisors (see below), whose sum is σ = 256159697664. Its totient is φ = 190204640640.

The previous prime is 223021221121. The next prime is 223021221187. The reversal of 223021221143 is 341122120322.

It is not a de Polignac number, because 223021221143 - 2¹⁰ = 223021220119 is a prime.

It is a super-2 number, since 2×223021221143² (a number of 23 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 (223021221043) 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, 1061996 + ... + 1254542.

It is an arithmetic number, because the mean of its divisors is an integer number (16009981104).

Almost surely, 2^223021221143 is an apocalyptic number.

223021221143 is a deficient number, since it is larger than the sum of its proper divisors (33138476521).

223021221143 is a wasteful number, since it uses less digits than its factorization.

223021221143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193382.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 223021221143 its reverse (341122120322), we get a palindrome (564143341465).

The spelling of 223021221143 in words is "two hundred twenty-three billion, twenty-one million, two hundred twenty-one thousand, one hundred forty-three".