11662213331 has 8 divisors (see below), whose sum is σ = 11845698000. Its totient is φ = 11479370112.

The previous prime is 11662213327. The next prime is 11662213369. The reversal of 11662213331 is 13331226611.

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 11662213331 - 2² = 11662213327 is a prime.

It is a super-2 number, since 2×11662213331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11662213294 and 11662213303.

It is not an unprimeable number, because it can be changed into a prime (11662213391) 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, 123650 + ... + 196503.

It is an arithmetic number, because the mean of its divisors is an integer number (1480712250).

Almost surely, 2^11662213331 is an apocalyptic number.

11662213331 is a deficient number, since it is larger than the sum of its proper divisors (183484669).

11662213331 is an equidigital number, since it uses as much as digits as its factorization.

11662213331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320725.

The product of its digits is 3888, while the sum is 29.

Adding to 11662213331 its reverse (13331226611), we get a palindrome (24993439942).

The spelling of 11662213331 in words is "eleven billion, six hundred sixty-two million, two hundred thirteen thousand, three hundred thirty-one".