11221560132321 has 32 divisors (see below), whose sum is σ = 18659063725056. Its totient is φ = 5827806360000.

The previous prime is 11221560132317. The next prime is 11221560132359. The reversal of 11221560132321 is 12323106512211.

It is a happy number.

It is not a de Polignac number, because 11221560132321 - 2² = 11221560132317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11221560132121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5707915 + ... + 7417776.

It is an arithmetic number, because the mean of its divisors is an integer number (583095741408).

Almost surely, 2^{11221560132321} is an apocalyptic number.

11221560132321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11221560132321 is a deficient number, since it is larger than the sum of its proper divisors (7437503592735).

11221560132321 is a wasteful number, since it uses less digits than its factorization.

11221560132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13129413.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 11221560132321 its reverse (12323106512211), we get a palindrome (23544666644532).

The spelling of 11221560132321 in words is "eleven trillion, two hundred twenty-one billion, five hundred sixty million, one hundred thirty-two thousand, three hundred twenty-one".