11216401 has 8 divisors (see below), whose sum is σ = 12951680. Its totient is φ = 9514368.

The previous prime is 11216399. The next prime is 11216423. The reversal of 11216401 is 10461211.

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 11216401 - 2¹ = 11216399 is a prime.

It is a super-3 number, since 3×11216401³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11216461) 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, 7581 + ... + 8938.

It is an arithmetic number, because the mean of its divisors is an integer number (1618960).

Almost surely, 2^11216401 is an apocalyptic number.

It is an amenable number.

11216401 is a deficient number, since it is larger than the sum of its proper divisors (1735279).

11216401 is an equidigital number, since it uses as much as digits as its factorization.

11216401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16623.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 11216401 is about 3349.0895777808. The cubic root of 11216401 is about 223.8469471585.

Adding to 11216401 its reverse (10461211), we get a palindrome (21677612).

The spelling of 11216401 in words is "eleven million, two hundred sixteen thousand, four hundred one".