221423020022 has 8 divisors (see below), whose sum is σ = 332137503000. Its totient is φ = 110710519024.

The previous prime is 221423019997. The next prime is 221423020031. The reversal of 221423020022 is 220020324122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221423019976 and 221423020003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174647 + ... + 688002.

It is an arithmetic number, because the mean of its divisors is an integer number (41517187875).

Almost surely, 2^221423020022 is an apocalyptic number.

221423020022 is a deficient number, since it is larger than the sum of its proper divisors (110714482978).

221423020022 is a wasteful number, since it uses less digits than its factorization.

221423020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990990.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 221423020022 its reverse (220020324122), we get a palindrome (441443344144).

The spelling of 221423020022 in words is "two hundred twenty-one billion, four hundred twenty-three million, twenty thousand, twenty-two".