213102212 has 6 divisors (see below), whose sum is σ = 372928878. Its totient is φ = 106551104.

The previous prime is 213102209. The next prime is 213102247. The reversal of 213102212 is 212201312.

It is a happy number.

213102212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 117375556 + 95726656 = 10834^2 + 9784^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26637773 + ... + 26637780.

It is an arithmetic number, because the mean of its divisors is an integer number (62154813).

Almost surely, 2^213102212 is an apocalyptic number.

It is an amenable number.

213102212 is a deficient number, since it is larger than the sum of its proper divisors (159826666).

213102212 is a wasteful number, since it uses less digits than its factorization.

213102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53275557 (or 53275555 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 213102212 is about 14598.0208247557. The cubic root of 213102212 is about 597.3047740197.

Adding to 213102212 its reverse (212201312), we get a palindrome (425303524).

The spelling of 213102212 in words is "two hundred thirteen million, one hundred two thousand, two hundred twelve".