11011102120020 has 96 divisors (see below), whose sum is σ = 31337820251136. Its totient is φ = 2888037504000.

The previous prime is 11011102119883. The next prime is 11011102120033. The reversal of 11011102120020 is 2002120111011.

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 = 11011102119978 and 11011102120005.

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, 118160445 + ... + 118253595.

It is an arithmetic number, because the mean of its divisors is an integer number (326435627616).

Almost surely, 2^{11011102120020} is an apocalyptic number.

11011102120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011102120020 is an abundant number, since it is smaller than the sum of its proper divisors (20326718131116).

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

11011102120020 is a wasteful number, since it uses less digits than its factorization.

11011102120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125521 (or 125519 counting only the distinct ones).

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

Adding to 11011102120020 its reverse (2002120111011), we get a palindrome (13013222231031).

The spelling of 11011102120020 in words is "eleven trillion, eleven billion, one hundred two million, one hundred twenty thousand, twenty".