11011021202020 has 48 divisors (see below), whose sum is σ = 26516643648768. Its totient is φ = 3762322588800.

The previous prime is 11011021201981. The next prime is 11011021202023. The reversal of 11011021202020 is 2020212011011.

It is a super-2 number, since 2×11011021202020² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11011021202023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134174256 + ... + 134256295.

It is an arithmetic number, because the mean of its divisors is an integer number (552430076016).

Almost surely, 2^{11011021202020} is an apocalyptic number.

11011021202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011021202020 is an abundant number, since it is smaller than the sum of its proper divisors (15505622446748).

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

11011021202020 is a wasteful number, since it uses less digits than its factorization.

11011021202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268430860 (or 268430858 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11011021202020 its reverse (2020212011011), we get a palindrome (13031233213031).

The spelling of 11011021202020 in words is "eleven trillion, eleven billion, twenty-one million, two hundred two thousand, twenty".