2121201030210 has 32 divisors (see below), whose sum is σ = 5090994605952. Its totient is φ = 565641148800.

The previous prime is 2121201030199. The next prime is 2121201030257. The reversal of 2121201030210 is 120301021212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2121201030210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648910 + ... + 2159510.

It is an arithmetic number, because the mean of its divisors is an integer number (159093581436).

Almost surely, 2^{2121201030210} is an apocalyptic number.

2121201030210 is an abundant number, since it is smaller than the sum of its proper divisors (2969793575742).

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

2121201030210 is a wasteful number, since it uses less digits than its factorization.

2121201030210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557418.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2121201030210 its reverse (120301021212), we get a palindrome (2241502051422).

The spelling of 2121201030210 in words is "two trillion, one hundred twenty-one billion, two hundred one million, thirty thousand, two hundred ten".