221200022023 has 4 divisors (see below), whose sum is σ = 221538766968. Its totient is φ = 220861277080.

The previous prime is 221200021993. The next prime is 221200022033. The reversal of 221200022023 is 320220002122.

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

It is a cyclic number.

It is not a de Polignac number, because 221200022023 - 2²⁵ = 221166467591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221200021988 and 221200022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221200022033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169371493 + ... + 169372798.

It is an arithmetic number, because the mean of its divisors is an integer number (55384691742).

Almost surely, 2^221200022023 is an apocalyptic number.

221200022023 is a deficient number, since it is larger than the sum of its proper divisors (338744945).

221200022023 is an equidigital number, since it uses as much as digits as its factorization.

221200022023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338744944.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 221200022023 its reverse (320220002122), we get a palindrome (541420024145).

The spelling of 221200022023 in words is "two hundred twenty-one billion, two hundred million, twenty-two thousand, twenty-three".