11221444135 has 8 divisors (see below), whose sum is σ = 14689890576. Its totient is φ = 8161050240.

The previous prime is 11221444123. The next prime is 11221444141. The reversal of 11221444135 is 53144412211.

It is a happy number.

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

It is not a de Polignac number, because 11221444135 - 2⁵ = 11221444103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102013074 + ... + 102013183.

It is an arithmetic number, because the mean of its divisors is an integer number (1836236322).

Almost surely, 2^11221444135 is an apocalyptic number.

11221444135 is a deficient number, since it is larger than the sum of its proper divisors (3468446441).

11221444135 is a wasteful number, since it uses less digits than its factorization.

11221444135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204026273.

The product of its digits is 3840, while the sum is 28.

Adding to 11221444135 its reverse (53144412211), we get a palindrome (64365856346).

The spelling of 11221444135 in words is "eleven billion, two hundred twenty-one million, four hundred forty-four thousand, one hundred thirty-five".