11011212200220 has 48 divisors (see below), whose sum is σ = 30914052116640. Its totient is φ = 2928451067136.

The previous prime is 11011212200179. The next prime is 11011212200249. The reversal of 11011212200220 is 2200221211011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11011212200220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245983255 + ... + 246028014.

It is an arithmetic number, because the mean of its divisors is an integer number (644042752430).

Almost surely, 2^{11011212200220} is an apocalyptic number.

11011212200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011212200220 is an abundant number, since it is smaller than the sum of its proper divisors (19902839916420).

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

11011212200220 is a wasteful number, since it uses less digits than its factorization.

11011212200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492011654 (or 492011652 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11011212200220 its reverse (2200221211011), we get a palindrome (13211433411231).

The spelling of 11011212200220 in words is "eleven trillion, eleven billion, two hundred twelve million, two hundred thousand, two hundred twenty".