212110002121001 has 16 divisors (see below), whose sum is σ = 218254053631680. Its totient is φ = 206045325595200.

The previous prime is 212110002120979. The next prime is 212110002121009. The reversal of 212110002121001 is 100121200011212.

It is a cyclic number.

It is not a de Polignac number, because 212110002121001 - 2³⁰ = 212108928379177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212110002121009) 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, 844251266 + ... + 844502468.

It is an arithmetic number, because the mean of its divisors is an integer number (13640878351980).

Almost surely, 2^{212110002121001} is an apocalyptic number.

It is an amenable number.

212110002121001 is a deficient number, since it is larger than the sum of its proper divisors (6144051510679).

212110002121001 is a wasteful number, since it uses less digits than its factorization.

212110002121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409096.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212110002121001 its reverse (100121200011212), we get a palindrome (312231202132213).

The spelling of 212110002121001 in words is "two hundred twelve trillion, one hundred ten billion, two million, one hundred twenty-one thousand, one".