221342041444 has 6 divisors (see below), whose sum is σ = 387348572534. Its totient is φ = 110671020720.

The previous prime is 221342041441. The next prime is 221342041463. The reversal of 221342041444 is 444140243122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 158372161600 + 62969879844 = 397960^2 + 250938^2 .

It is a super-3 number, since 3×221342041444³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (221342041441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27667755177 + ... + 27667755184.

Almost surely, 2^221342041444 is an apocalyptic number.

It is an amenable number.

221342041444 is a deficient number, since it is larger than the sum of its proper divisors (166006531090).

221342041444 is a wasteful number, since it uses less digits than its factorization.

221342041444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55335510365 (or 55335510363 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 221342041444 its reverse (444140243122), we get a palindrome (665482284566).

The spelling of 221342041444 in words is "two hundred twenty-one billion, three hundred forty-two million, forty-one thousand, four hundred forty-four".