212200021121210 has 8 divisors (see below), whose sum is σ = 381960038018196. Its totient is φ = 84880008448480.

The previous prime is 212200021121189. The next prime is 212200021121213. The reversal of 212200021121210 is 12121120002212.

It can be written as a sum of positive squares in 2 ways, for example, as 203728434582409 + 8471586538801 = 14273347^2 + 2910599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (212200021121213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10610001056051 + ... + 10610001056070.

Almost surely, 2^{212200021121210} is an apocalyptic number.

212200021121210 is a deficient number, since it is larger than the sum of its proper divisors (169760016896986).

212200021121210 is a wasteful number, since it uses less digits than its factorization.

212200021121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21220002112128.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212200021121210 its reverse (12121120002212), we get a palindrome (224321141123422).

The spelling of 212200021121210 in words is "two hundred twelve trillion, two hundred billion, twenty-one million, one hundred twenty-one thousand, two hundred ten".