11012120200020 has 48 divisors (see below), whose sum is σ = 31040875756800. Its totient is φ = 2916856891776.

The previous prime is 11012120200013. The next prime is 11012120200031. The reversal of 11012120200020 is 2000202121011.

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 = 11012120199969 and 11012120200005.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 615881452 + ... + 615899331.

It is an arithmetic number, because the mean of its divisors is an integer number (646684911600).

Almost surely, 2^{11012120200020} is an apocalyptic number.

11012120200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11012120200020 is an abundant number, since it is smaller than the sum of its proper divisors (20028755556780).

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

11012120200020 is a wasteful number, since it uses less digits than its factorization.

11012120200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231780944 (or 1231780942 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11012120200020 its reverse (2000202121011), we get a palindrome (13012322321031).

The spelling of 11012120200020 in words is "eleven trillion, twelve billion, one hundred twenty million, two hundred thousand, twenty".