221000010122011 has 12 divisors (see below), whose sum is σ = 228879191917200. Its totient is φ = 213383799504720.

The previous prime is 221000010121967. The next prime is 221000010122057. The reversal of 221000010122011 is 110221010000122.

It is not a de Polignac number, because 221000010122011 - 2⁷ = 221000010121883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221000010121982 and 221000010122000.

It is not an unprimeable number, because it can be changed into a prime (221000010122911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261501576 + ... + 262345333.

It is an arithmetic number, because the mean of its divisors is an integer number (19073265993100).

Almost surely, 2^{221000010122011} is an apocalyptic number.

221000010122011 is a deficient number, since it is larger than the sum of its proper divisors (7879181795189).

221000010122011 is an equidigital number, since it uses as much as digits as its factorization.

221000010122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523847410 (or 523847379 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221000010122011 its reverse (110221010000122), we get a palindrome (331221020122133).

The spelling of 221000010122011 in words is "two hundred twenty-one trillion, ten million, one hundred twenty-two thousand, eleven".