11350340221 has 16 divisors (see below), whose sum is σ = 12718476288. Its totient is φ = 10041966000.

The previous prime is 11350340191. The next prime is 11350340269. The reversal of 11350340221 is 12204305311.

It is a happy number.

It is not a de Polignac number, because 11350340221 - 2¹⁹ = 11349815933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11350340192 and 11350340201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11350340321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31605 + ... + 153946.

It is an arithmetic number, because the mean of its divisors is an integer number (794904768).

Almost surely, 2^11350340221 is an apocalyptic number.

11350340221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11350340221 is a deficient number, since it is larger than the sum of its proper divisors (1368136067).

11350340221 is a wasteful number, since it uses less digits than its factorization.

11350340221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185712.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 11350340221 its reverse (12204305311), we get a palindrome (23554645532).

The spelling of 11350340221 in words is "eleven billion, three hundred fifty million, three hundred forty thousand, two hundred twenty-one".