221022023203144 has 16 divisors (see below), whose sum is σ = 414416481897600. Its totient is φ = 110510961363792.

The previous prime is 221022023203141. The next prime is 221022023203151. The reversal of 221022023203144 is 441302320220122.

It is a super-2 number, since 2×221022023203144² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221022023203141) 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, 17890597 + ... + 27606475.

It is an arithmetic number, because the mean of its divisors is an integer number (25901030118600).

Almost surely, 2^{221022023203144} is an apocalyptic number.

It is an amenable number.

221022023203144 is a deficient number, since it is larger than the sum of its proper divisors (193394458694456).

221022023203144 is a wasteful number, since it uses less digits than its factorization.

221022023203144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12559452 (or 12559448 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 221022023203144 its reverse (441302320220122), we get a palindrome (662324343423266).

The spelling of 221022023203144 in words is "two hundred twenty-one trillion, twenty-two billion, twenty-three million, two hundred three thousand, one hundred forty-four".