221431416104354 has 4 divisors (see below), whose sum is σ = 332147124156534. Its totient is φ = 110715708052176.

The previous prime is 221431416104279. The next prime is 221431416104377. The reversal of 221431416104354 is 453401614134122.

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., 189684648486025 + 31746767618329 = 13772605^2 + 5634427^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55357854026087 + ... + 55357854026090.

Almost surely, 2^{221431416104354} is an apocalyptic number.

221431416104354 is a deficient number, since it is larger than the sum of its proper divisors (110715708052180).

221431416104354 is a wasteful number, since it uses less digits than its factorization.

221431416104354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110715708052179.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 221431416104354 in words is "two hundred twenty-one trillion, four hundred thirty-one billion, four hundred sixteen million, one hundred four thousand, three hundred fifty-four".