1101225442321 has 4 divisors (see below), whose sum is σ = 1101487580644. Its totient is φ = 1100963304000.

The previous prime is 1101225442307. The next prime is 1101225442327. The reversal of 1101225442321 is 1232445221011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 122125087296 + 979100355025 = 349464^2 + 989495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101225442321 - 2¹⁵ = 1101225409553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1101225442321.

It is not an unprimeable number, because it can be changed into a prime (1101225442327) 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, 131062860 + ... + 131071261.

It is an arithmetic number, because the mean of its divisors is an integer number (275371895161).

Almost surely, 2^{1101225442321} is an apocalyptic number.

It is an amenable number.

1101225442321 is a deficient number, since it is larger than the sum of its proper divisors (262138323).

1101225442321 is an equidigital number, since it uses as much as digits as its factorization.

1101225442321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262138322.

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 1101225442321 in words is "one trillion, one hundred one billion, two hundred twenty-five million, four hundred forty-two thousand, three hundred twenty-one".