11332101221 has 4 divisors (see below), whose sum is σ = 12950972832. Its totient is φ = 9713229612.

The previous prime is 11332101217. The next prime is 11332101223. The reversal of 11332101221 is 12210123311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12210123311 = 19 ⋅642638069.

It is a cyclic number.

It is not a de Polignac number, because 11332101221 - 2² = 11332101217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11332101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11332101223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809435795 + ... + 809435808.

It is an arithmetic number, because the mean of its divisors is an integer number (3237743208).

Almost surely, 2^11332101221 is an apocalyptic number.

It is an amenable number.

11332101221 is a deficient number, since it is larger than the sum of its proper divisors (1618871611).

11332101221 is an equidigital number, since it uses as much as digits as its factorization.

11332101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618871610.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11332101221 its reverse (12210123311), we get a palindrome (23542224532).

The spelling of 11332101221 in words is "eleven billion, three hundred thirty-two million, one hundred one thousand, two hundred twenty-one".