11220012012213 has 12 divisors (see below), whose sum is σ = 16350106001580. Its totient is φ = 7413813246336.

The previous prime is 11220012012203. The next prime is 11220012012229. The reversal of 11220012012213 is 31221021002211.

It can be written as a sum of positive squares in 2 ways, for example, as 3773760808689 + 7446251203524 = 1942617^2 + 2728782^2 .

It is not a de Polignac number, because 11220012012213 - 2¹⁸ = 11220011750069 is a prime.

It is a super-2 number, since 2×11220012012213² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220012012203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5516229078 + ... + 5516231111.

It is an arithmetic number, because the mean of its divisors is an integer number (1362508833465).

Almost surely, 2^{11220012012213} is an apocalyptic number.

It is an amenable number.

11220012012213 is a deficient number, since it is larger than the sum of its proper divisors (5130093989367).

11220012012213 is a wasteful number, since it uses less digits than its factorization.

11220012012213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11032460308 (or 11032460305 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11220012012213 its reverse (31221021002211), we get a palindrome (42441033014424).

The spelling of 11220012012213 in words is "eleven trillion, two hundred twenty billion, twelve million, twelve thousand, two hundred thirteen".