211212110020101 has 8 divisors (see below), whose sum is σ = 282062448037824. Its totient is φ = 140584922674560.

The previous prime is 211212110020073. The next prime is 211212110020157. The reversal of 211212110020101 is 101020011212112.

It is a happy number.

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

It is not a de Polignac number, because 211212110020101 - 2¹¹ = 211212110018053 is a prime.

It is a super-2 number, since 2×211212110020101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211212110020501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55787665836 + ... + 55787669621.

It is an arithmetic number, because the mean of its divisors is an integer number (35257806004728).

Almost surely, 2^{211212110020101} is an apocalyptic number.

It is an amenable number.

211212110020101 is a deficient number, since it is larger than the sum of its proper divisors (70850338017723).

211212110020101 is a wasteful number, since it uses less digits than its factorization.

211212110020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111575336091.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211212110020101 its reverse (101020011212112), we get a palindrome (312232121232213).

The spelling of 211212110020101 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred ten million, twenty thousand, one hundred one".