212010129 has 10 divisors (see below), whose sum is σ = 316706610. Its totient is φ = 141340032.

The previous prime is 212010119. The next prime is 212010133. The reversal of 212010129 is 921010212.

It can be written as a sum of positive squares in only one way, i.e., 172659600 + 39350529 = 13140^2 + 6273^2 .

It is not a de Polignac number, because 212010129 - 2⁹ = 212009617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212010119) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1308624 + ... + 1308785.

It is an arithmetic number, because the mean of its divisors is an integer number (31670661).

Almost surely, 2^212010129 is an apocalyptic number.

It is an amenable number.

212010129 is a deficient number, since it is larger than the sum of its proper divisors (104696481).

212010129 is an equidigital number, since it uses as much as digits as its factorization.

212010129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617421 (or 2617412 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 212010129 is about 14560.5676056945. The cubic root of 212010129 is about 596.2826919301.

The spelling of 212010129 in words is "two hundred twelve million, ten thousand, one hundred twenty-nine".