221344423042 has 16 divisors (see below), whose sum is σ = 333193069440. Its totient is φ = 110280272688.

The previous prime is 221344423037. The next prime is 221344423103. The reversal of 221344423042 is 240324443122.

It is a super-4 number, since 4×221344423042⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 221344422995 and 221344423013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2183559 + ... + 2282677.

It is an arithmetic number, because the mean of its divisors is an integer number (20824566840).

Almost surely, 2^221344423042 is an apocalyptic number.

221344423042 is a deficient number, since it is larger than the sum of its proper divisors (111848646398).

221344423042 is a wasteful number, since it uses less digits than its factorization.

221344423042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103065.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 221344423042 its reverse (240324443122), we get a palindrome (461668866164).

The spelling of 221344423042 in words is "two hundred twenty-one billion, three hundred forty-four million, four hundred twenty-three thousand, forty-two".