11021123221213 has 16 divisors (see below), whose sum is σ = 12888733411840. Its totient is φ = 9226812346416.

The previous prime is 11021123221181. The next prime is 11021123221237. The reversal of 11021123221213 is 31212232112011.

It is a happy number.

It is not a de Polignac number, because 11021123221213 - 2⁵ = 11021123221181 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 (11021123221313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17040298 + ... + 17675236.

It is an arithmetic number, because the mean of its divisors is an integer number (805545838240).

Almost surely, 2^{11021123221213} is an apocalyptic number.

It is an amenable number.

11021123221213 is a deficient number, since it is larger than the sum of its proper divisors (1867610190627).

11021123221213 is an equidigital number, since it uses as much as digits as its factorization.

11021123221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692656.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 11021123221213 its reverse (31212232112011), we get a palindrome (42233355333224).

The spelling of 11021123221213 in words is "eleven trillion, twenty-one billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred thirteen".