11215350220 has 12 divisors (see below), whose sum is σ = 23552235504. Its totient is φ = 4486140080.

The previous prime is 11215350203. The next prime is 11215350259. The reversal of 11215350220 is 2205351211.

It is a junction number, because it is equal to n+sod(n) for n = 11215350191 and 11215350200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280383736 + ... + 280383775.

It is an arithmetic number, because the mean of its divisors is an integer number (1962686292).

Almost surely, 2^11215350220 is an apocalyptic number.

11215350220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11215350220 is an abundant number, since it is smaller than the sum of its proper divisors (12336885284).

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

11215350220 is a wasteful number, since it uses less digits than its factorization.

11215350220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560767520 (or 560767518 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Subtracting from 11215350220 its reverse (2205351211), we obtain a palindrome (9009999009).

The spelling of 11215350220 in words is "eleven billion, two hundred fifteen million, three hundred fifty thousand, two hundred twenty".