11021201220021 has 8 divisors (see below), whose sum is σ = 14698975374624. Its totient is φ = 7345447272720.

The previous prime is 11021201219971. The next prime is 11021201220047. The reversal of 11021201220021 is 12002210212011.

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

It is not a de Polignac number, because 11021201220021 - 2⁷ = 11021201219893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021201220121) 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 7 ways as a sum of consecutive naturals, for example, 505039095 + ... + 505060916.

It is an arithmetic number, because the mean of its divisors is an integer number (1837371921828).

Almost surely, 2^{11021201220021} is an apocalyptic number.

It is an amenable number.

11021201220021 is a deficient number, since it is larger than the sum of its proper divisors (3677774154603).

11021201220021 is a wasteful number, since it uses less digits than its factorization.

11021201220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010103651.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11021201220021 its reverse (12002210212011), we get a palindrome (23023411432032).

The spelling of 11021201220021 in words is "eleven trillion, twenty-one billion, two hundred one million, two hundred twenty thousand, twenty-one".