212000101010101 has 4 divisors (see below), whose sum is σ = 212000135822572. Its totient is φ = 212000066197632.

The previous prime is 212000101010063. The next prime is 212000101010179. The reversal of 212000101010101 is 101010101000212.

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 41771325529476 + 170228775480625 = 6463074^2 + 13047175^2 .

It is a cyclic number.

It is not a de Polignac number, because 212000101010101 - 2⁹ = 212000101009589 is a prime.

It is a Duffinian number.

212000101010101 is a modest number, since divided by 101010101 gives 21200 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212000101010501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5604156 + ... + 21340261.

It is an arithmetic number, because the mean of its divisors is an integer number (53000033955643).

Almost surely, 2^{212000101010101} is an apocalyptic number.

It is an amenable number.

212000101010101 is a deficient number, since it is larger than the sum of its proper divisors (34812471).

212000101010101 is an equidigital number, since it uses as much as digits as its factorization.

212000101010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34812470.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 212000101010101 its reverse (101010101000212), we get a palindrome (313010202010313).

It can be divided in two parts, 212000 and 101010101, that added together give a palindrome (101222101).

The spelling of 212000101010101 in words is "two hundred twelve trillion, one hundred one million, ten thousand, one hundred one".