1101222011213 has 4 divisors (see below), whose sum is σ = 1101451964220. Its totient is φ = 1100992058208.

The previous prime is 1101222011143. The next prime is 1101222011251. The reversal of 1101222011213 is 3121102221011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 570753052324 + 530468958889 = 755482^2 + 728333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101222011213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101222011191 and 1101222011200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101222011413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114969320 + ... + 114978897.

It is an arithmetic number, because the mean of its divisors is an integer number (275362991055).

Almost surely, 2^{1101222011213} is an apocalyptic number.

It is an amenable number.

1101222011213 is a deficient number, since it is larger than the sum of its proper divisors (229953007).

1101222011213 is an equidigital number, since it uses as much as digits as its factorization.

1101222011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229953006.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1101222011213 its reverse (3121102221011), we get a palindrome (4222324232224).

The spelling of 1101222011213 in words is "one trillion, one hundred one billion, two hundred twenty-two million, eleven thousand, two hundred thirteen".