11100221202021 has 32 divisors (see below), whose sum is σ = 17383748794368. Its totient is φ = 6167297620800.

The previous prime is 11100221202019. The next prime is 11100221202023. The reversal of 11100221202021 is 12020212200111.

It is an interprime number because it is at equal distance from previous prime (11100221202019) and next prime (11100221202023).

It is not a de Polignac number, because 11100221202021 - 2¹ = 11100221202019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100221202023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3795385 + ... + 6050238.

It is an arithmetic number, because the mean of its divisors is an integer number (543242149824).

Almost surely, 2^{11100221202021} is an apocalyptic number.

It is an amenable number.

11100221202021 is a deficient number, since it is larger than the sum of its proper divisors (6283527592347).

11100221202021 is a wasteful number, since it uses less digits than its factorization.

11100221202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9847121.

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

Adding to 11100221202021 its reverse (12020212200111), we get a palindrome (23120433402132).

The spelling of 11100221202021 in words is "eleven trillion, one hundred billion, two hundred twenty-one million, two hundred two thousand, twenty-one".