212131131112001 has 16 divisors (see below), whose sum is σ = 219539565000000. Its totient is φ = 204728943671616.

The previous prime is 212131131111997. The next prime is 212131131112037. The reversal of 212131131112001 is 100211131131212.

It is a cyclic number.

It is not a de Polignac number, because 212131131112001 - 2² = 212131131111997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212131131118001) 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, 1623979670 + ... + 1624110288.

It is an arithmetic number, because the mean of its divisors is an integer number (13721222812500).

Almost surely, 2^{212131131112001} is an apocalyptic number.

It is an amenable number.

212131131112001 is a deficient number, since it is larger than the sum of its proper divisors (7408433887999).

212131131112001 is a wasteful number, since it uses less digits than its factorization.

212131131112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154096.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 212131131112001 its reverse (100211131131212), we get a palindrome (312342262243213).

The spelling of 212131131112001 in words is "two hundred twelve trillion, one hundred thirty-one billion, one hundred thirty-one million, one hundred twelve thousand, one".