11020020200021 has 24 divisors (see below), whose sum is σ = 13494731760000. Its totient is φ = 8948037760704.

The previous prime is 11020020199999. The next prime is 11020020200029. The reversal of 11020020200021 is 12000202002011.

It is a happy number.

It is not a de Polignac number, because 11020020200021 - 2¹⁴ = 11020020183637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11020020199975 and 11020020200011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020020200029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15144740 + ... + 15855698.

It is an arithmetic number, because the mean of its divisors is an integer number (562280490000).

Almost surely, 2^{11020020200021} is an apocalyptic number.

It is an amenable number.

11020020200021 is a deficient number, since it is larger than the sum of its proper divisors (2474711559979).

11020020200021 is a wasteful number, since it uses less digits than its factorization.

11020020200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727641 (or 727634 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11020020200021 its reverse (12000202002011), we get a palindrome (23020222202032).

The spelling of 11020020200021 in words is "eleven trillion, twenty billion, twenty million, two hundred thousand, twenty-one".