11123012221201 has 8 divisors (see below), whose sum is σ = 11333034262440. Its totient is φ = 10912995879552.

The previous prime is 11123012221199. The next prime is 11123012221219. The reversal of 11123012221201 is 10212221032111.

It can be written as a sum of positive squares in 4 ways, for example, as 2554067441025 + 8568944780176 = 1598145^2 + 2927276^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11123012221201 - 2¹ = 11123012221199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11123012221801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2622565 + ... + 5396653.

It is an arithmetic number, because the mean of its divisors is an integer number (1416629282805).

Almost surely, 2^{11123012221201} is an apocalyptic number.

It is an amenable number.

11123012221201 is a deficient number, since it is larger than the sum of its proper divisors (210022041239).

11123012221201 is an equidigital number, since it uses as much as digits as its factorization.

11123012221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849795.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 11123012221201 its reverse (10212221032111), we get a palindrome (21335233253312).

The spelling of 11123012221201 in words is "eleven trillion, one hundred twenty-three billion, twelve million, two hundred twenty-one thousand, two hundred one".