221201210103 has 8 divisors (see below), whose sum is σ = 297691348608. Its totient is φ = 146089272504.

The previous prime is 221201210093. The next prime is 221201210123. The reversal of 221201210103 is 301012102122.

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

It is not a de Polignac number, because 221201210103 - 2⁹ = 221201209591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221201210123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344549851 + ... + 344550492.

It is an arithmetic number, because the mean of its divisors is an integer number (37211418576).

Almost surely, 2^221201210103 is an apocalyptic number.

221201210103 is a deficient number, since it is larger than the sum of its proper divisors (76490138505).

221201210103 is a wasteful number, since it uses less digits than its factorization.

221201210103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689100453.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 221201210103 its reverse (301012102122), we get a palindrome (522213312225).

The spelling of 221201210103 in words is "two hundred twenty-one billion, two hundred one million, two hundred ten thousand, one hundred three".