11222112020 has 96 divisors (see below), whose sum is σ = 28138682880. Its totient is φ = 3677990400.

The previous prime is 11222111993. The next prime is 11222112023. The reversal of 11222112020 is 2021122211.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 11222111986 and 11222112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222112023) 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, 396377 + ... + 423743.

It is an arithmetic number, because the mean of its divisors is an integer number (293111280).

Almost surely, 2^11222112020 is an apocalyptic number.

11222112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11222112020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14069341440).

11222112020 is an abundant number, since it is smaller than the sum of its proper divisors (16916570860).

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

11222112020 is a wasteful number, since it uses less digits than its factorization.

11222112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27513 (or 27511 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11222112020 its reverse (2021122211), we get a palindrome (13243234231).

The spelling of 11222112020 in words is "eleven billion, two hundred twenty-two million, one hundred twelve thousand, twenty".