202122212 has 12 divisors (see below), whose sum is σ = 353910396. Its totient is φ = 101004960.

The previous prime is 202122203. The next prime is 202122233. The reversal of 202122212 is 212221202.

It can be written as a sum of positive squares in 2 ways, for example, as 139806976 + 62315236 = 11824^2 + 7894^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5339 + ... + 20802.

It is an arithmetic number, because the mean of its divisors is an integer number (29492533).

Almost surely, 2^202122212 is an apocalyptic number.

It is an amenable number.

202122212 is a deficient number, since it is larger than the sum of its proper divisors (151788184).

202122212 is a wasteful number, since it uses less digits than its factorization.

202122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28078 (or 28076 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 202122212 is about 14216.9691566100. The cubic root of 202122212 is about 586.8647361222.

Adding to 202122212 its reverse (212221202), we get a palindrome (414343414).

The spelling of 202122212 in words is "two hundred two million, one hundred twenty-two thousand, two hundred twelve".