11220223013 has 8 divisors (see below), whose sum is σ = 11434952088. Its totient is φ = 11005606144.

The previous prime is 11220222991. The next prime is 11220223019. The reversal of 11220223013 is 31032202211.

It can be written as a sum of positive squares in 4 ways, for example, as 1915112644 + 9305110369 = 43762^2 + 96463^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11220223013 - 2²² = 11216028709 is a prime.

It is a super-2 number, since 2×11220223013² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11220222982 and 11220223000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220223019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189881 + ... + 241857.

It is an arithmetic number, because the mean of its divisors is an integer number (1429369011).

Almost surely, 2^11220223013 is an apocalyptic number.

It is an amenable number.

11220223013 is a deficient number, since it is larger than the sum of its proper divisors (214729075).

11220223013 is an equidigital number, since it uses as much as digits as its factorization.

11220223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56103.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11220223013 its reverse (31032202211), we get a palindrome (42252425224).

The spelling of 11220223013 in words is "eleven billion, two hundred twenty million, two hundred twenty-three thousand, thirteen".