211212100110101 has 8 divisors (see below), whose sum is σ = 211433583254400. Its totient is φ = 210990641037120.

The previous prime is 211212100110043. The next prime is 211212100110127. The reversal of 211212100110101 is 101011001212112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211212100110101 is a prime.

It is a super-2 number, since 2×211212100110101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211212100110161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11567156 + ... + 23584386.

It is an arithmetic number, because the mean of its divisors is an integer number (26429197906800).

Almost surely, 2^{211212100110101} is an apocalyptic number.

It is an amenable number.

211212100110101 is a deficient number, since it is larger than the sum of its proper divisors (221483144299).

211212100110101 is a wasteful number, since it uses less digits than its factorization.

211212100110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12035659.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 211212100110101 its reverse (101011001212112), we get a palindrome (312223101322213).

The spelling of 211212100110101 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred million, one hundred ten thousand, one hundred one".