11221100211021 has 8 divisors (see below), whose sum is σ = 15028558728960. Its totient is φ = 7447187583552.

The previous prime is 11221100210987. The next prime is 11221100211031. The reversal of 11221100211021 is 12011200112211.

It is a happy number.

11221100211021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11221100211021 - 2³⁵ = 11186740472653 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 (11221100211031) 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, 8386471836 + ... + 8386473173.

It is an arithmetic number, because the mean of its divisors is an integer number (1878569841120).

Almost surely, 2^{11221100211021} is an apocalyptic number.

It is an amenable number.

11221100211021 is a deficient number, since it is larger than the sum of its proper divisors (3807458517939).

11221100211021 is a wasteful number, since it uses less digits than its factorization.

11221100211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16772945235.

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

Adding to 11221100211021 its reverse (12011200112211), we get a palindrome (23232300323232).

The spelling of 11221100211021 in words is "eleven trillion, two hundred twenty-one billion, one hundred million, two hundred eleven thousand, twenty-one".