11211133012220 has 48 divisors (see below), whose sum is σ = 24099971642208. Its totient is φ = 4378514165760.

The previous prime is 11211133012213. The next prime is 11211133012241. The reversal of 11211133012220 is 2221033111211.

11211133012220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11211133012192 and 11211133012201.

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, 168161 + ... + 4738200.

It is an arithmetic number, because the mean of its divisors is an integer number (502082742546).

Almost surely, 2^{11211133012220} is an apocalyptic number.

11211133012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211133012220 is an abundant number, since it is smaller than the sum of its proper divisors (12888838629988).

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

11211133012220 is a wasteful number, since it uses less digits than its factorization.

11211133012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4909070 (or 4909068 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11211133012220 its reverse (2221033111211), we get a palindrome (13432166123431).

The spelling of 11211133012220 in words is "eleven trillion, two hundred eleven billion, one hundred thirty-three million, twelve thousand, two hundred twenty".