211017121210 has 128 divisors (see below), whose sum is σ = 456233472000. Its totient is φ = 68754216960.

The previous prime is 211017121207. The next prime is 211017121219. The reversal of 211017121210 is 12121710112.

211017121210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×211017121210³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (211017121219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28772704 + ... + 28780036.

It is an arithmetic number, because the mean of its divisors is an integer number (3564324000).

Almost surely, 2^211017121210 is an apocalyptic number.

211017121210 is an abundant number, since it is smaller than the sum of its proper divisors (245216350790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211017121210 is a wasteful number, since it uses less digits than its factorization.

211017121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7616.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 211017121210 its reverse (12121710112), we get a palindrome (223138831322).

The spelling of 211017121210 in words is "two hundred eleven billion, seventeen million, one hundred twenty-one thousand, two hundred ten".