221498351341 has 4 divisors (see below), whose sum is σ = 223091864800. Its totient is φ = 219904837884.

The previous prime is 221498351339. The next prime is 221498351351. The reversal of 221498351341 is 143153894122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221498351341 - 2¹ = 221498351339 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 (221498351351) 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, 796756521 + ... + 796756798.

It is an arithmetic number, because the mean of its divisors is an integer number (55772966200).

Almost surely, 2^221498351341 is an apocalyptic number.

It is an amenable number.

221498351341 is a deficient number, since it is larger than the sum of its proper divisors (1593513459).

221498351341 is a wasteful number, since it uses less digits than its factorization.

221498351341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593513458.

The product of its digits is 207360, while the sum is 43.

The spelling of 221498351341 in words is "two hundred twenty-one billion, four hundred ninety-eight million, three hundred fifty-one thousand, three hundred forty-one".