212211002 has 4 divisors (see below), whose sum is σ = 318316506. Its totient is φ = 106105500.

The previous prime is 212211001. The next prime is 212211007. The reversal of 212211002 is 200112212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 110019121 + 102191881 = 10489^2 + 10109^2 .

It is not an unprimeable number, because it can be changed into a prime (212211001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53052749 + ... + 53052752.

Almost surely, 2^212211002 is an apocalyptic number.

212211002 is a deficient number, since it is larger than the sum of its proper divisors (106105504).

212211002 is a wasteful number, since it uses less digits than its factorization.

212211002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106105503.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 212211002 is about 14567.4638149542. The cubic root of 212211002 is about 596.4709522509.

Adding to 212211002 its reverse (200112212), we get a palindrome (412323214).

The spelling of 212211002 in words is "two hundred twelve million, two hundred eleven thousand, two".