11021121201001 has 4 divisors (see below), whose sum is σ = 11601180211600. Its totient is φ = 10441062190404.

The previous prime is 11021121200983. The next prime is 11021121201007. The reversal of 11021121201001 is 10010212112011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11021121201001 - 2³⁹ = 10471365387113 is a prime.

It is a super-3 number, since 3×11021121201001³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021121201007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290029505271 + ... + 290029505308.

It is an arithmetic number, because the mean of its divisors is an integer number (2900295052900).

Almost surely, 2^{11021121201001} is an apocalyptic number.

It is an amenable number.

11021121201001 is a deficient number, since it is larger than the sum of its proper divisors (580059010599).

11021121201001 is an equidigital number, since it uses as much as digits as its factorization.

11021121201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580059010598.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11021121201001 its reverse (10010212112011), we get a palindrome (21031333313012).

The spelling of 11021121201001 in words is "eleven trillion, twenty-one billion, one hundred twenty-one million, two hundred one thousand, one".