11020102100021 has 8 divisors (see below), whose sum is σ = 12595830569280. Its totient is φ = 9444730673088.

The previous prime is 11020102099991. The next prime is 11020102100023. The reversal of 11020102100021 is 12000120102011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11020102100021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11020102099975 and 11020102100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020102100023) 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, 89194436 + ... + 89317901.

It is an arithmetic number, because the mean of its divisors is an integer number (1574478821160).

Almost surely, 2^{11020102100021} is an apocalyptic number.

It is an amenable number.

11020102100021 is a deficient number, since it is larger than the sum of its proper divisors (1575728469259).

11020102100021 is an equidigital number, since it uses as much as digits as its factorization.

11020102100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178521163.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11020102100021 its reverse (12000120102011), we get a palindrome (23020222202032).

The spelling of 11020102100021 in words is "eleven trillion, twenty billion, one hundred two million, one hundred thousand, twenty-one".