221022211010011 has 4 divisors (see below), whose sum is σ = 221045646732624. Its totient is φ = 220998775287400.

The previous prime is 221022211009987. The next prime is 221022211010021. The reversal of 221022211010011 is 110010112220122.

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 221022211010011 - 2¹³ = 221022211001819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221022211010021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11717847160 + ... + 11717866021.

It is an arithmetic number, because the mean of its divisors is an integer number (55261411683156).

Almost surely, 2^{221022211010011} is an apocalyptic number.

221022211010011 is a deficient number, since it is larger than the sum of its proper divisors (23435722613).

221022211010011 is an equidigital number, since it uses as much as digits as its factorization.

221022211010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23435722612.

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

Adding to 221022211010011 its reverse (110010112220122), we get a palindrome (331032323230133).

The spelling of 221022211010011 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred eleven million, ten thousand, eleven".