20434222411211 has 4 divisors (see below), whose sum is σ = 23353397041392. Its totient is φ = 17515047781032.

The previous prime is 20434222411117. The next prime is 20434222411219. The reversal of 20434222411211 is 11211422243402.

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 20434222411211 - 2¹⁰ = 20434222410187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20434222411219) 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, 1459587315080 + ... + 1459587315093.

It is an arithmetic number, because the mean of its divisors is an integer number (5838349260348).

Almost surely, 2^{20434222411211} is an apocalyptic number.

20434222411211 is a deficient number, since it is larger than the sum of its proper divisors (2919174630181).

20434222411211 is an equidigital number, since it uses as much as digits as its factorization.

20434222411211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919174630180.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 20434222411211 its reverse (11211422243402), we get a palindrome (31645644654613).

The spelling of 20434222411211 in words is "twenty trillion, four hundred thirty-four billion, two hundred twenty-two million, four hundred eleven thousand, two hundred eleven".