221414132405 has 8 divisors (see below), whose sum is σ = 266328070584. Its totient is φ = 176710564800.

The previous prime is 221414132371. The next prime is 221414132441. The reversal of 221414132405 is 504231414122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15899696836 + 205514435569 = 126094^2 + 453337^2 .

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

It is not a de Polignac number, because 221414132405 - 2⁶ = 221414132341 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 52590326 + ... + 52594535.

It is an arithmetic number, because the mean of its divisors is an integer number (33291008823).

Almost surely, 2^221414132405 is an apocalyptic number.

It is an amenable number.

221414132405 is a deficient number, since it is larger than the sum of its proper divisors (44913938179).

221414132405 is a wasteful number, since it uses less digits than its factorization.

221414132405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105185287.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 221414132405 its reverse (504231414122), we get a palindrome (725645546527).

The spelling of 221414132405 in words is "two hundred twenty-one billion, four hundred fourteen million, one hundred thirty-two thousand, four hundred five".