212030101 has 6 divisors (see below), whose sum is σ = 223777302. Its totient is φ = 200870280.

The previous prime is 212030089. The next prime is 212030131. The reversal of 212030101 is 101030212.

It can be written as a sum of positive squares in only one way, i.e., 211266225 + 763876 = 14535^2 + 874^2 .

It is not a de Polignac number, because 212030101 - 2⁷ = 212029973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212030131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 293310 + ... + 294031.

It is an arithmetic number, because the mean of its divisors is an integer number (37296217).

Almost surely, 2^212030101 is an apocalyptic number.

It is an amenable number.

212030101 is a deficient number, since it is larger than the sum of its proper divisors (11747201).

212030101 is an equidigital number, since it uses as much as digits as its factorization.

212030101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587379 (or 587360 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 212030101 is about 14561.2534144558. The cubic root of 212030101 is about 596.3014152241.

Adding to 212030101 its reverse (101030212), we get a palindrome (313060313).

The spelling of 212030101 in words is "two hundred twelve million, thirty thousand, one hundred one".