11221201110021 has 8 divisors (see below), whose sum is σ = 17098973120064. Its totient is φ = 6412114920000.

The previous prime is 11221201109981. The next prime is 11221201110029. The reversal of 11221201110021 is 12001110212211.

It is a happy number.

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

It is not a de Polignac number, because 11221201110021 - 2¹¹ = 11221201107973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221201110029) 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, 267171454980 + ... + 267171455021.

It is an arithmetic number, because the mean of its divisors is an integer number (2137371640008).

Almost surely, 2^{11221201110021} is an apocalyptic number.

It is an amenable number.

11221201110021 is a deficient number, since it is larger than the sum of its proper divisors (5877772010043).

11221201110021 is an equidigital number, since it uses as much as digits as its factorization.

11221201110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534342910011.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11221201110021 its reverse (12001110212211), we get a palindrome (23222311322232).

The spelling of 11221201110021 in words is "eleven trillion, two hundred twenty-one billion, two hundred one million, one hundred ten thousand, twenty-one".