212013330101 has 4 divisors (see below), whose sum is σ = 212218571532. Its totient is φ = 211808088672.

The previous prime is 212013330097. The next prime is 212013330119. The reversal of 212013330101 is 101033310212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 166954777201 + 45058552900 = 408601^2 + 212270^2 .

It is a cyclic number.

It is not a de Polignac number, because 212013330101 - 2² = 212013330097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212013330101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013330121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102619166 + ... + 102621231.

It is an arithmetic number, because the mean of its divisors is an integer number (53054642883).

Almost surely, 2^212013330101 is an apocalyptic number.

It is an amenable number.

212013330101 is a deficient number, since it is larger than the sum of its proper divisors (205241431).

212013330101 is a wasteful number, since it uses less digits than its factorization.

212013330101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205241430.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 212013330101 its reverse (101033310212), we get a palindrome (313046640313).

The spelling of 212013330101 in words is "two hundred twelve billion, thirteen million, three hundred thirty thousand, one hundred one".