22444121011 has 4 divisors (see below), whose sum is σ = 24170591872. Its totient is φ = 20717650152.

The previous prime is 22444120999. The next prime is 22444121033. The reversal of 22444121011 is 11012144422.

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 22444121011 - 2¹³ = 22444112819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22444121081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863235411 + ... + 863235436.

It is an arithmetic number, because the mean of its divisors is an integer number (6042647968).

Almost surely, 2^22444121011 is an apocalyptic number.

22444121011 is a deficient number, since it is larger than the sum of its proper divisors (1726470861).

22444121011 is a wasteful number, since it uses less digits than its factorization.

22444121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726470860.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22444121011 its reverse (11012144422), we get a palindrome (33456265433).

The spelling of 22444121011 in words is "twenty-two billion, four hundred forty-four million, one hundred twenty-one thousand, eleven".