11021110120020 has 192 divisors, whose sum is σ = 41433208621056. Its totient is φ = 2113939192320.

The previous prime is 11021110120019. The next prime is 11021110120037. The reversal of 11021110120020 is 2002101112011.

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 = 11021110119978 and 11021110120005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 91690774 + ... + 91810893.

It is an arithmetic number, because the mean of its divisors is an integer number (215797961568).

Almost surely, 2^{11021110120020} is an apocalyptic number.

11021110120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021110120020 is an abundant number, since it is smaller than the sum of its proper divisors (30412098501036).

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

11021110120020 is a wasteful number, since it uses less digits than its factorization.

11021110120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183501710 (or 183501708 counting only the distinct ones).

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

Adding to 11021110120020 its reverse (2002101112011), we get a palindrome (13023211232031).

The spelling of 11021110120020 in words is "eleven trillion, twenty-one billion, one hundred ten million, one hundred twenty thousand, twenty".