10211221210211 has 8 divisors (see below), whose sum is σ = 11741561988864. Its totient is φ = 8698779154440.

The previous prime is 10211221210193. The next prime is 10211221210241. The reversal of 10211221210211 is 11201212211201.

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

It is a cyclic number.

It is not a de Polignac number, because 10211221210211 - 2⁶ = 10211221210147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10211221210211.

It is not an unprimeable number, because it can be changed into a prime (10211221210241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4474679495 + ... + 4474681776.

It is an arithmetic number, because the mean of its divisors is an integer number (1467695248608).

Almost surely, 2^{10211221210211} is an apocalyptic number.

10211221210211 is a deficient number, since it is larger than the sum of its proper divisors (1530340778653).

10211221210211 is an equidigital number, since it uses as much as digits as its factorization.

10211221210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8949361441.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10211221210211 its reverse (11201212211201), we get a palindrome (21412433421412).

The spelling of 10211221210211 in words is "ten trillion, two hundred eleven billion, two hundred twenty-one million, two hundred ten thousand, two hundred eleven".