11223235261 has 8 divisors (see below), whose sum is σ = 12828110400. Its totient is φ = 9618749088.

The previous prime is 11223235213. The next prime is 11223235297. The reversal of 11223235261 is 16253232211.

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 11223235261 - 2⁹ = 11223234749 is a prime.

It is a super-2 number, since 2×11223235261² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223235561) 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, 32536 + ... + 153313.

It is an arithmetic number, because the mean of its divisors is an integer number (1603513800).

Almost surely, 2^11223235261 is an apocalyptic number.

It is an amenable number.

11223235261 is a deficient number, since it is larger than the sum of its proper divisors (1604875139).

11223235261 is an equidigital number, since it uses as much as digits as its factorization.

11223235261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194483.

The product of its digits is 4320, while the sum is 28.

Adding to 11223235261 its reverse (16253232211), we get a palindrome (27476467472).

The spelling of 11223235261 in words is "eleven billion, two hundred twenty-three million, two hundred thirty-five thousand, two hundred sixty-one".