2012210121210 has 128 divisors (see below), whose sum is σ = 5134605410304. Its totient is φ = 503786407680.

The previous prime is 2012210121209. The next prime is 2012210121217. The reversal of 2012210121210 is 121210122102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2012210121210.

It is not an unprimeable number, because it can be changed into a prime (2012210121217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11856009 + ... + 12024531.

It is an arithmetic number, because the mean of its divisors is an integer number (40114104768).

Almost surely, 2^{2012210121210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012210121210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2567302705152).

2012210121210 is an abundant number, since it is smaller than the sum of its proper divisors (3122395289094).

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

2012210121210 is a wasteful number, since it uses less digits than its factorization.

2012210121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168948.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2012210121210 its reverse (121210122102), we get a palindrome (2133420243312).

The spelling of 2012210121210 in words is "two trillion, twelve billion, two hundred ten million, one hundred twenty-one thousand, two hundred ten".