11121210020020 has 96 divisors (see below), whose sum is σ = 24146653708800. Its totient is φ = 4300835595264.

The previous prime is 11121210020003. The next prime is 11121210020029. The reversal of 11121210020020 is 2002001212111.

11121210020020 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-3 number, since 3×11121210020020³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121210020029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15685422 + ... + 16379098.

It is an arithmetic number, because the mean of its divisors is an integer number (251527642800).

Almost surely, 2^{11121210020020} is an apocalyptic number.

11121210020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121210020020 is an abundant number, since it is smaller than the sum of its proper divisors (13025443688780).

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

11121210020020 is a wasteful number, since it uses less digits than its factorization.

11121210020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693977 (or 693975 counting only the distinct ones).

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

Adding to 11121210020020 its reverse (2002001212111), we get a palindrome (13123211232131).

The spelling of 11121210020020 in words is "eleven trillion, one hundred twenty-one billion, two hundred ten million, twenty thousand, twenty".