221342224343432 has 8 divisors (see below), whose sum is σ = 415016670643950. Its totient is φ = 110671112171712.

The previous prime is 221342224343431. The next prime is 221342224343473. The reversal of 221342224343432 is 234343422243122.

It can be written as a sum of positive squares in only one way, i.e., 161805167110756 + 59537057232676 = 12720266^2 + 7716026^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×221342224343432³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221342224343432.

It is not an unprimeable number, because it can be changed into a prime (221342224343431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13833889021457 + ... + 13833889021472.

Almost surely, 2^{221342224343432} is an apocalyptic number.

It is an amenable number.

221342224343432 is a deficient number, since it is larger than the sum of its proper divisors (193674446300518).

221342224343432 is a wasteful number, since it uses less digits than its factorization.

221342224343432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27667778042935 (or 27667778042931 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 41.

Adding to 221342224343432 its reverse (234343422243122), we get a palindrome (455685646586554).

The spelling of 221342224343432 in words is "two hundred twenty-one trillion, three hundred forty-two billion, two hundred twenty-four million, three hundred forty-three thousand, four hundred thirty-two".