211212000000001 has 24 divisors (see below), whose sum is σ = 285143503898304. Its totient is φ = 151920719271360.

The previous prime is 211211999999981. The next prime is 211212000000031. The reversal of 211212000000001 is 100000000212112.

It is not a de Polignac number, because 211212000000001 - 2⁵ = 211211999999969 is a prime.

It is a super-2 number, since 2×211212000000001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211212000000031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8115410026 + ... + 8115436051.

It is an arithmetic number, because the mean of its divisors is an integer number (11880979329096).

Almost surely, 2^{211212000000001} is an apocalyptic number.

It is an amenable number.

211212000000001 is a deficient number, since it is larger than the sum of its proper divisors (73931503898303).

211212000000001 is a wasteful number, since it uses less digits than its factorization.

211212000000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16230846121 (or 16230846108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 211212000000001 its reverse (100000000212112), we get a palindrome (311212000212113).

It can be divided in two parts, 211 and 212000000001, that added together give a palindrome (212000000212).

The spelling of 211212000000001 in words is "two hundred eleven trillion, two hundred twelve billion, one", and thus it is an aban number.