20100110221211 has 4 divisors (see below), whose sum is σ = 20102292889800. Its totient is φ = 20097927552624.

The previous prime is 20100110221151. The next prime is 20100110221223. The reversal of 20100110221211 is 11212201100102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20100110221211 - 2¹⁸ = 20100109959067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100110224211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091320481 + ... + 1091338898.

It is an arithmetic number, because the mean of its divisors is an integer number (5025573222450).

Almost surely, 2^{20100110221211} is an apocalyptic number.

20100110221211 is a deficient number, since it is larger than the sum of its proper divisors (2182668589).

20100110221211 is an equidigital number, since it uses as much as digits as its factorization.

20100110221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182668588.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20100110221211 its reverse (11212201100102), we get a palindrome (31312311321313).

The spelling of 20100110221211 in words is "twenty trillion, one hundred billion, one hundred ten million, two hundred twenty-one thousand, two hundred eleven".