2133121020210 has 160 divisors (see below), whose sum is σ = 5828148184320. Its totient is φ = 559738916352.

The previous prime is 2133121020203. The next prime is 2133121020227. The reversal of 2133121020210 is 120201213312.

2133121020210 is a `hidden beast` number, since 21 + 331 + 2 + 102 + 0 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12638839 + ... + 12806501.

It is an arithmetic number, because the mean of its divisors is an integer number (36425926152).

Almost surely, 2^{2133121020210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2133121020210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2914074092160).

2133121020210 is an abundant number, since it is smaller than the sum of its proper divisors (3695027164110).

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

2133121020210 is a wasteful number, since it uses less digits than its factorization.

2133121020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167934 (or 167925 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2133121020210 its reverse (120201213312), we get a palindrome (2253322233522).

The spelling of 2133121020210 in words is "two trillion, one hundred thirty-three billion, one hundred twenty-one million, twenty thousand, two hundred ten".