212221000111210 has 8 divisors (see below), whose sum is σ = 381997800200196. Its totient is φ = 84888400044480.

The previous prime is 212221000111201. The next prime is 212221000111223. The reversal of 212221000111210 is 12111000122212.

It can be written as a sum of positive squares in 2 ways, for example, as 210350322964681 + 1870677146529 = 14503459^2 + 1367727^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10611050005551 + ... + 10611050005570.

Almost surely, 2^{212221000111210} is an apocalyptic number.

212221000111210 is a deficient number, since it is larger than the sum of its proper divisors (169776800088986).

212221000111210 is a wasteful number, since it uses less digits than its factorization.

212221000111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21222100011128.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212221000111210 its reverse (12111000122212), we get a palindrome (224332000233422).

The spelling of 212221000111210 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred eleven thousand, two hundred ten".