20221205450011 has 4 divisors (see below), whose sum is σ = 20281209027352. Its totient is φ = 20161201872672.

The previous prime is 20221205449933. The next prime is 20221205450099. The reversal of 20221205450011 is 11005450212202.

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 20221205450011 - 2⁹ = 20221205449499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221205451011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30001788165 + ... + 30001788838.

It is an arithmetic number, because the mean of its divisors is an integer number (5070302256838).

Almost surely, 2^{20221205450011} is an apocalyptic number.

20221205450011 is a deficient number, since it is larger than the sum of its proper divisors (60003577341).

20221205450011 is an equidigital number, since it uses as much as digits as its factorization.

20221205450011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60003577340.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 20221205450011 its reverse (11005450212202), we get a palindrome (31226655662213).

The spelling of 20221205450011 in words is "twenty trillion, two hundred twenty-one billion, two hundred five million, four hundred fifty thousand, eleven".