212110020121 has 8 divisors (see below), whose sum is σ = 213423482144. Its totient is φ = 210796706880.

The previous prime is 212110020107. The next prime is 212110020131. The reversal of 212110020121 is 121020011212.

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

It is a cyclic number.

It is not a de Polignac number, because 212110020121 - 2¹¹ = 212110018073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212110020131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4604161 + ... + 4650001.

It is an arithmetic number, because the mean of its divisors is an integer number (26677935268).

Almost surely, 2^212110020121 is an apocalyptic number.

It is an amenable number.

212110020121 is a deficient number, since it is larger than the sum of its proper divisors (1313462023).

212110020121 is a wasteful number, since it uses less digits than its factorization.

212110020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74391.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212110020121 its reverse (121020011212), we get a palindrome (333130031333).

The spelling of 212110020121 in words is "two hundred twelve billion, one hundred ten million, twenty thousand, one hundred twenty-one".