220121210010211 has 4 divisors (see below), whose sum is σ = 222907554440800. Its totient is φ = 217334865579624.

The previous prime is 220121210010173. The next prime is 220121210010323. The reversal of 220121210010211 is 112010012121022.

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 220121210010211 - 2⁹ = 220121210009699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220121213010211) 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, 1393172215176 + ... + 1393172215333.

It is an arithmetic number, because the mean of its divisors is an integer number (55726888610200).

Almost surely, 2^{220121210010211} is an apocalyptic number.

220121210010211 is a deficient number, since it is larger than the sum of its proper divisors (2786344430589).

220121210010211 is an equidigital number, since it uses as much as digits as its factorization.

220121210010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786344430588.

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

Adding to 220121210010211 its reverse (112010012121022), we get a palindrome (332131222131233).

The spelling of 220121210010211 in words is "two hundred twenty trillion, one hundred twenty-one billion, two hundred ten million, ten thousand, two hundred eleven".