221002222020211 has 16 divisors (see below), whose sum is σ = 232292525189760. Its totient is φ = 209970118632960.

The previous prime is 221002222020193. The next prime is 221002222020253. The reversal of 221002222020211 is 112020222200122.

It is a cyclic number.

It is not a de Polignac number, because 221002222020211 - 2⁹ = 221002222019699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221002222020311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120194370 + ... + 122019223.

It is an arithmetic number, because the mean of its divisors is an integer number (14518282824360).

Almost surely, 2^{221002222020211} is an apocalyptic number.

221002222020211 is a deficient number, since it is larger than the sum of its proper divisors (11290303169549).

221002222020211 is a wasteful number, since it uses less digits than its factorization.

221002222020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242214126.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221002222020211 its reverse (112020222200122), we get a palindrome (333022444220333).

The spelling of 221002222020211 in words is "two hundred twenty-one trillion, two billion, two hundred twenty-two million, twenty thousand, two hundred eleven".