10211211220211 has 16 divisors (see below), whose sum is σ = 10596266714880. Its totient is φ = 9832875323040.

The previous prime is 10211211220207. The next prime is 10211211220277. The reversal of 10211211220211 is 11202211211201.

It is a cyclic number.

It is not a de Polignac number, because 10211211220211 - 2² = 10211211220207 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 10211211220211.

It is not an unprimeable number, because it can be changed into a prime (10211211220411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102955601 + ... + 103054733.

It is an arithmetic number, because the mean of its divisors is an integer number (662266669680).

Almost surely, 2^{10211211220211} is an apocalyptic number.

10211211220211 is a deficient number, since it is larger than the sum of its proper divisors (385055494669).

10211211220211 is an equidigital number, since it uses as much as digits as its factorization.

10211211220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132986.

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

Adding to 10211211220211 its reverse (11202211211201), we get a palindrome (21413422431412).

The spelling of 10211211220211 in words is "ten trillion, two hundred eleven billion, two hundred eleven million, two hundred twenty thousand, two hundred eleven".