221002022112211 has 4 divisors (see below), whose sum is σ = 221024293816392. Its totient is φ = 220979750408032.

The previous prime is 221002022112203. The next prime is 221002022112229. The reversal of 221002022112211 is 112211220200122.

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 221002022112211 - 2³ = 221002022112203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221002022112281) 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 3 ways as a sum of consecutive naturals, for example, 11135837206 + ... + 11135857051.

It is an arithmetic number, because the mean of its divisors is an integer number (55256073454098).

Almost surely, 2^{221002022112211} is an apocalyptic number.

221002022112211 is a deficient number, since it is larger than the sum of its proper divisors (22271704181).

221002022112211 is an equidigital number, since it uses as much as digits as its factorization.

221002022112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22271704180.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221002022112211 its reverse (112211220200122), we get a palindrome (333213242312333).

The spelling of 221002022112211 in words is "two hundred twenty-one trillion, two billion, twenty-two million, one hundred twelve thousand, two hundred eleven".