20122444011 has 4 divisors (see below), whose sum is σ = 26829925352. Its totient is φ = 13414962672.

The previous prime is 20122443989. The next prime is 20122444037. The reversal of 20122444011 is 11044422102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20122444011 - 2¹⁰ = 20122442987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122444061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3353740666 + ... + 3353740671.

It is an arithmetic number, because the mean of its divisors is an integer number (6707481338).

Almost surely, 2^20122444011 is an apocalyptic number.

20122444011 is a deficient number, since it is larger than the sum of its proper divisors (6707481341).

20122444011 is an equidigital number, since it uses as much as digits as its factorization.

20122444011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707481340.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20122444011 its reverse (11044422102), we get a palindrome (31166866113).

The spelling of 20122444011 in words is "twenty billion, one hundred twenty-two million, four hundred forty-four thousand, eleven".