212122203 has 8 divisors (see below), whose sum is σ = 283209216. Its totient is φ = 141225000.

The previous prime is 212122199. The next prime is 212122237. The reversal of 212122203 is 302221212.

It is a happy number.

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

It is not a de Polignac number, because 212122203 - 2² = 212122199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212122903) 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, 44823 + ... + 49328.

It is an arithmetic number, because the mean of its divisors is an integer number (35401152).

Almost surely, 2^212122203 is an apocalyptic number.

212122203 is a deficient number, since it is larger than the sum of its proper divisors (71087013).

212122203 is an equidigital number, since it uses as much as digits as its factorization.

212122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94905.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 212122203 is about 14564.4156422426. The cubic root of 212122203 is about 596.3877435370.

Adding to 212122203 its reverse (302221212), we get a palindrome (514343415).

Subtracting 212122203 from its reverse (302221212), we obtain a palindrome (90099009).

The spelling of 212122203 in words is "two hundred twelve million, one hundred twenty-two thousand, two hundred three".