11204421201021 has 8 divisors (see below), whose sum is σ = 14939243742880. Its totient is φ = 7469606396592.

The previous prime is 11204421201013. The next prime is 11204421201059. The reversal of 11204421201021 is 12010212440211.

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

It is not a de Polignac number, because 11204421201021 - 2³ = 11204421201013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11204421201221) 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, 4544610 + ... + 6562188.

It is an arithmetic number, because the mean of its divisors is an integer number (1867405467860).

Almost surely, 2^{11204421201021} is an apocalyptic number.

It is an amenable number.

11204421201021 is a deficient number, since it is larger than the sum of its proper divisors (3734822541859).

11204421201021 is a wasteful number, since it uses less digits than its factorization.

11204421201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868715.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11204421201021 its reverse (12010212440211), we get a palindrome (23214633641232).

The spelling of 11204421201021 in words is "eleven trillion, two hundred four billion, four hundred twenty-one million, two hundred one thousand, twenty-one".