212103001 has 4 divisors (see below), whose sum is σ = 231385104. Its totient is φ = 192820900.

The previous prime is 212102983. The next prime is 212103011. The reversal of 212103001 is 100301212.

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 212103001 - 2¹¹ = 212100953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212103011) 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, 9641035 + ... + 9641056.

It is an arithmetic number, because the mean of its divisors is an integer number (57846276).

Almost surely, 2^212103001 is an apocalyptic number.

It is an amenable number.

212103001 is a deficient number, since it is larger than the sum of its proper divisors (19282103).

212103001 is a wasteful number, since it uses less digits than its factorization.

212103001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19282102.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 212103001 is about 14563.7564179026. The cubic root of 212103001 is about 596.3697473335.

Adding to 212103001 its reverse (100301212), we get a palindrome (312404213).

The spelling of 212103001 in words is "two hundred twelve million, one hundred three thousand, one".