211212101212113 has 16 divisors (see below), whose sum is σ = 286000253485056. Its totient is φ = 138632935306320.

The previous prime is 211212101212103. The next prime is 211212101212127. The reversal of 211212101212113 is 311212101212112.

It is not a de Polignac number, because 211212101212113 - 2⁸ = 211212101211857 is a prime.

It is a super-2 number, since 2×211212101212113² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 211212101212113.

It is not an unprimeable number, because it can be changed into a prime (211212101212103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2115837381 + ... + 2115937202.

It is an arithmetic number, because the mean of its divisors is an integer number (17875015842816).

Almost surely, 2^{211212101212113} is an apocalyptic number.

It is an amenable number.

211212101212113 is a deficient number, since it is larger than the sum of its proper divisors (74788152272943).

211212101212113 is a wasteful number, since it uses less digits than its factorization.

211212101212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4231774844.

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 211212101212113 its reverse (311212101212112), we get a palindrome (522424202424225).

Subtracting 211212101212113 from its reverse (311212101212112), we obtain a palindrome (99999999999999).

The spelling of 211212101212113 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred one million, two hundred twelve thousand, one hundred thirteen".