221322030023 has 4 divisors (see below), whose sum is σ = 221448718680. Its totient is φ = 221195341368.

The previous prime is 221322029977. The next prime is 221322030037. The reversal of 221322030023 is 320030223122.

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 221322030023 - 2⁶ = 221322029959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221322029977 and 221322030004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221322032023) 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, 63341708 + ... + 63345201.

It is an arithmetic number, because the mean of its divisors is an integer number (55362179670).

Almost surely, 2^221322030023 is an apocalyptic number.

221322030023 is a deficient number, since it is larger than the sum of its proper divisors (126688657).

221322030023 is a wasteful number, since it uses less digits than its factorization.

221322030023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126688656.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 221322030023 its reverse (320030223122), we get a palindrome (541352253145).

The spelling of 221322030023 in words is "two hundred twenty-one billion, three hundred twenty-two million, thirty thousand, twenty-three".