11011021201 has 8 divisors (see below), whose sum is σ = 11290242024. Its totient is φ = 10734447360.

The previous prime is 11011021121. The next prime is 11011021247. The reversal of 11011021201 is 10212011011.

It can be written as a sum of positive squares in 4 ways, for example, as 2099472400 + 8911548801 = 45820^2 + 94401^2 .

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 11011021201 - 2⁹ = 11011020689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11011024201) 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, 653320 + ... + 669961.

It is an arithmetic number, because the mean of its divisors is an integer number (1411280253).

Almost surely, 2^11011021201 is an apocalyptic number.

It is an amenable number.

11011021201 is a deficient number, since it is larger than the sum of its proper divisors (279220823).

11011021201 is a wasteful number, since it uses less digits than its factorization.

11011021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323491.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11011021201 its reverse (10212011011), we get a palindrome (21223032212).

The spelling of 11011021201 in words is "eleven billion, eleven million, twenty-one thousand, two hundred one".