11010121021020 has 96 divisors (see below), whose sum is σ = 33632215981056. Its totient is φ = 2669017004800.

The previous prime is 11010121021007. The next prime is 11010121021043. The reversal of 11010121021020 is 2012012101011.

11010121021020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×11010121021020⁴ (a number of 53 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11010121020987 and 11010121021005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17498317 + ... + 18116603.

It is an arithmetic number, because the mean of its divisors is an integer number (350335583136).

Almost surely, 2^{11010121021020} is an apocalyptic number.

11010121021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11010121021020 is an abundant number, since it is smaller than the sum of its proper divisors (22622094960036).

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

11010121021020 is a wasteful number, since it uses less digits than its factorization.

11010121021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645291 (or 645289 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11010121021020 its reverse (2012012101011), we get a palindrome (13022133122031).

The spelling of 11010121021020 in words is "eleven trillion, ten billion, one hundred twenty-one million, twenty-one thousand, twenty".