11222120005 has 48 divisors (see below), whose sum is σ = 14638593024. Its totient is φ = 8252979840.

The previous prime is 11222119973. The next prime is 11222120009. The reversal of 11222120005 is 50002122211.

It is a happy number.

It is not a de Polignac number, because 11222120005 - 2⁵ = 11222119973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222120009) 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 47 ways as a sum of consecutive naturals, for example, 14824087 + ... + 14824843.

It is an arithmetic number, because the mean of its divisors is an integer number (304970688).

Almost surely, 2^11222120005 is an apocalyptic number.

It is an amenable number.

11222120005 is a deficient number, since it is larger than the sum of its proper divisors (3416473019).

11222120005 is a wasteful number, since it uses less digits than its factorization.

11222120005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 11222120005 its reverse (50002122211), we get a palindrome (61224242216).

The spelling of 11222120005 in words is "eleven billion, two hundred twenty-two million, one hundred twenty thousand, five".