212205103 has 8 divisors (see below), whose sum is σ = 234098640. Its totient is φ = 190745280.

The previous prime is 212205023. The next prime is 212205109. The reversal of 212205103 is 301502212.

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

It is not a de Polignac number, because 212205103 - 2²¹ = 210107951 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 (212205109) 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, 107400 + ... + 109357.

It is an arithmetic number, because the mean of its divisors is an integer number (29262330).

Almost surely, 2^212205103 is an apocalyptic number.

212205103 is a deficient number, since it is larger than the sum of its proper divisors (21893537).

212205103 is a wasteful number, since it uses less digits than its factorization.

212205103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216857.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 212205103 is about 14567.2613417897. The cubic root of 212205103 is about 596.4654253387.

Adding to 212205103 its reverse (301502212), we get a palindrome (513707315).

The spelling of 212205103 in words is "two hundred twelve million, two hundred five thousand, one hundred three".