211210010121 has 16 divisors (see below), whose sum is σ = 308070328320. Its totient is φ = 127649496720.

The previous prime is 211210010083. The next prime is 211210010149. The reversal of 211210010121 is 121010012112.

It is not a de Polignac number, because 211210010121 - 2¹⁴ = 211209993737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211210010097 and 211210010106.

It is not an unprimeable number, because it can be changed into a prime (211210010191) 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, 8902225 + ... + 8925918.

It is an arithmetic number, because the mean of its divisors is an integer number (19254395520).

Almost surely, 2^211210010121 is an apocalyptic number.

It is an amenable number.

211210010121 is a deficient number, since it is larger than the sum of its proper divisors (96860318199).

211210010121 is a wasteful number, since it uses less digits than its factorization.

211210010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17828516.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211210010121 its reverse (121010012112), we get a palindrome (332220022233).

The spelling of 211210010121 in words is "two hundred eleven billion, two hundred ten million, ten thousand, one hundred twenty-one".