11020200020020 has 24 divisors (see below), whose sum is σ = 23143253401800. Its totient is φ = 4407921272832.

The previous prime is 11020200019991. The next prime is 11020200020023. The reversal of 11020200020020 is 2002000202011.

It can be written as a sum of positive squares in 4 ways, for example, as 5122092345616 + 5898107674404 = 2263204^2 + 2428602^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11020200019979 and 11020200020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020200020023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9350865 + ... + 10463224.

It is an arithmetic number, because the mean of its divisors is an integer number (964302225075).

Almost surely, 2^{11020200020020} is an apocalyptic number.

11020200020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020200020020 is an abundant number, since it is smaller than the sum of its proper divisors (12123053381780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11020200020020 is a wasteful number, since it uses less digits than its factorization.

11020200020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19841907 (or 19841905 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 11020200020020 its reverse (2002000202011), we get a palindrome (13022200222031).

The spelling of 11020200020020 in words is "eleven trillion, twenty billion, two hundred million, twenty thousand, twenty".