221412504431474 has 4 divisors (see below), whose sum is σ = 332118756647214. Its totient is φ = 110706252215736.

The previous prime is 221412504431399. The next prime is 221412504431507. The reversal of 221412504431474 is 474134405214122.

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

It can be written as a sum of positive squares in only one way, i.e., 205483824775849 + 15928679655625 = 14334707^2 + 3991075^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55353126107867 + ... + 55353126107870.

Almost surely, 2^{221412504431474} is an apocalyptic number.

221412504431474 is a deficient number, since it is larger than the sum of its proper divisors (110706252215740).

221412504431474 is a wasteful number, since it uses less digits than its factorization.

221412504431474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110706252215739.

The product of its (nonzero) digits is 860160, while the sum is 44.

Adding to 221412504431474 its reverse (474134405214122), we get a palindrome (695546909645596).

The spelling of 221412504431474 in words is "two hundred twenty-one trillion, four hundred twelve billion, five hundred four million, four hundred thirty-one thousand, four hundred seventy-four".