210012212 has 12 divisors (see below), whose sum is σ = 367691940. Its totient is φ = 104957376.

The previous prime is 210012193. The next prime is 210012223. The reversal of 210012212 is 212210012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 71808676 + 138203536 = 8474^2 + 11756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210012193 and 210012202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433 + ... + 20544.

It is an arithmetic number, because the mean of its divisors is an integer number (30640995).

Almost surely, 2^210012212 is an apocalyptic number.

It is an amenable number.

210012212 is a deficient number, since it is larger than the sum of its proper divisors (157679728).

210012212 is a wasteful number, since it uses less digits than its factorization.

210012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24370 (or 24368 counting only the distinct ones).

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

The square root of 210012212 is about 14491.7980940945. The cubic root of 210012212 is about 594.4037168268.

Adding to 210012212 its reverse (212210012), we get a palindrome (422222224).

It can be divided in two parts, 210012 and 212, that multiplied together give a palindrome (44522544).

The spelling of 210012212 in words is "two hundred ten million, twelve thousand, two hundred twelve".