11321221329988 has 6 divisors (see below), whose sum is σ = 19812137327486. Its totient is φ = 5660610664992.

The previous prime is 11321221329961. The next prime is 11321221329989. The reversal of 11321221329988 is 88992312212311.

It can be written as a sum of positive squares in only one way, i.e., 10266077381184 + 1055143948804 = 3204072^2 + 1027202^2 .

It is not an unprimeable number, because it can be changed into a prime (11321221329989) 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 as a sum of consecutive naturals, namely, 1415152666245 + ... + 1415152666252.

Almost surely, 2^{11321221329988} is an apocalyptic number.

It is an amenable number.

11321221329988 is a deficient number, since it is larger than the sum of its proper divisors (8490915997498).

11321221329988 is a wasteful number, since it uses less digits than its factorization.

11321221329988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830305332501 (or 2830305332499 counting only the distinct ones).

The product of its digits is 746496, while the sum is 52.

The spelling of 11321221329988 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-one million, three hundred twenty-nine thousand, nine hundred eighty-eight".