221434040333413 has 4 divisors (see below), whose sum is σ = 222132570429420. Its totient is φ = 220735510237408.

The previous prime is 221434040333377. The next prime is 221434040333497. The reversal of 221434040333413 is 314333040434122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38412997543684 + 183021042789729 = 6197822^2 + 13528527^2 .

It is a cyclic number.

It is not a de Polignac number, because 221434040333413 - 2³³ = 221425450398821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221434040330413) 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, 349265047528 + ... + 349265048161.

It is an arithmetic number, because the mean of its divisors is an integer number (55533142607355).

Almost surely, 2^{221434040333413} is an apocalyptic number.

It is an amenable number.

221434040333413 is a deficient number, since it is larger than the sum of its proper divisors (698530096007).

221434040333413 is an equidigital number, since it uses as much as digits as its factorization.

221434040333413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698530096006.

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 221434040333413 its reverse (314333040434122), we get a palindrome (535767080767535).

The spelling of 221434040333413 in words is "two hundred twenty-one trillion, four hundred thirty-four billion, forty million, three hundred thirty-three thousand, four hundred thirteen".