10212212 has 6 divisors (see below), whose sum is σ = 17871378. Its totient is φ = 5106104.

The previous prime is 10212203. The next prime is 10212233. The reversal of 10212212 is 21221201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5354596 + 4857616 = 2314^2 + 2204^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10212193 and 10212202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276523 + ... + 1276530.

It is an arithmetic number, because the mean of its divisors is an integer number (2978563).

Almost surely, 2^10212212 is an apocalyptic number.

It is an amenable number.

10212212 is a deficient number, since it is larger than the sum of its proper divisors (7659166).

10212212 is a wasteful number, since it uses less digits than its factorization.

10212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553057 (or 2553055 counting only the distinct ones).

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

The square root of 10212212 is about 3195.6551753905. The cubic root of 10212212 is about 216.9568036793.

Adding to 10212212 its reverse (21221201), we get a palindrome (31433413).

The spelling of 10212212 in words is "ten million, two hundred twelve thousand, two hundred twelve".