212212122211001 has 16 divisors (see below), whose sum is σ = 234458566219008. Its totient is φ = 190468905792000.

The previous prime is 212212122210923. The next prime is 212212122211049. The reversal of 212212122211001 is 100112221212212.

It is not a de Polignac number, because 212212122211001 - 2¹⁸ = 212212121948857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212212122211091) 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, 270160241 + ... + 270944606.

It is an arithmetic number, because the mean of its divisors is an integer number (14653660388688).

Almost surely, 2^{212212122211001} is an apocalyptic number.

It is an amenable number.

212212122211001 is a deficient number, since it is larger than the sum of its proper divisors (22246444008007).

212212122211001 is a wasteful number, since it uses less digits than its factorization.

212212122211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541105312.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212212122211001 its reverse (100112221212212), we get a palindrome (312324343423213).

The spelling of 212212122211001 in words is "two hundred twelve trillion, two hundred twelve billion, one hundred twenty-two million, two hundred eleven thousand, one".