11222312645 has 16 divisors (see below), whose sum is σ = 13828723392. Its totient is φ = 8738029440.

The previous prime is 11222312597. The next prime is 11222312653. The reversal of 11222312645 is 54621322211.

It is a de Polignac number, because none of the positive numbers 2^k-11222312645 is a prime.

It is a super-2 number, since 2×11222312645² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 31376 + ... + 153065.

It is an arithmetic number, because the mean of its divisors is an integer number (864295212).

Almost surely, 2^11222312645 is an apocalyptic number.

It is an amenable number.

11222312645 is a deficient number, since it is larger than the sum of its proper divisors (2606410747).

11222312645 is a wasteful number, since it uses less digits than its factorization.

11222312645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184772.

The product of its digits is 5760, while the sum is 29.

Adding to 11222312645 its reverse (54621322211), we get a palindrome (65843634856).

The spelling of 11222312645 in words is "eleven billion, two hundred twenty-two million, three hundred twelve thousand, six hundred forty-five".