212125210 has 16 divisors (see below), whose sum is σ = 416536992. Its totient is φ = 77136400.

The previous prime is 212125189. The next prime is 212125213. The reversal of 212125210 is 12521212.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (212125213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964096 + ... + 964315.

It is an arithmetic number, because the mean of its divisors is an integer number (26033562).

Almost surely, 2^212125210 is an apocalyptic number.

212125210 is a deficient number, since it is larger than the sum of its proper divisors (204411782).

212125210 is a wasteful number, since it uses less digits than its factorization.

212125210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928429.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 212125210 is about 14564.5188729323. The cubic root of 212125210 is about 596.3905616130.

Adding to 212125210 its reverse (12521212), we get a palindrome (224646422).

The spelling of 212125210 in words is "two hundred twelve million, one hundred twenty-five thousand, two hundred ten".