20111000221141 has 2 divisors, whose sum is σ = 20111000221142. Its totient is φ = 20111000221140.

The previous prime is 20111000221069. The next prime is 20111000221177. The reversal of 20111000221141 is 14112200011102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20087839946916 + 23160274225 = 4481946^2 + 152185^2 .

It is a cyclic number.

It is not a de Polignac number, because 20111000221141 - 2⁹ = 20111000220629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20111000221541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055500110570 + 10055500110571.

It is an arithmetic number, because the mean of its divisors is an integer number (10055500110571).

Almost surely, 2^{20111000221141} is an apocalyptic number.

It is an amenable number.

20111000221141 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111000221141 is an equidigital number, since it uses as much as digits as its factorization.

20111000221141 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20111000221141 its reverse (14112200011102), we get a palindrome (34223200232243).

The spelling of 20111000221141 in words is "twenty trillion, one hundred eleven billion, two hundred twenty-one thousand, one hundred forty-one".