11111302220 has 24 divisors (see below), whose sum is σ = 24561826800. Its totient is φ = 4210598592.

The previous prime is 11111302171. The next prime is 11111302229. The reversal of 11111302220 is 2220311111.

It is a super-2 number, since 2×11111302220² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11111302195 and 11111302204.

It is not an unprimeable number, because it can be changed into a prime (11111302229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14619755 + ... + 14620514.

It is an arithmetic number, because the mean of its divisors is an integer number (1023409450).

Almost surely, 2^11111302220 is an apocalyptic number.

11111302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111302220 is an abundant number, since it is smaller than the sum of its proper divisors (13450524580).

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

11111302220 is a wasteful number, since it uses less digits than its factorization.

11111302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29240297 (or 29240295 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11111302220 its reverse (2220311111), we get a palindrome (13331613331).

The spelling of 11111302220 in words is "eleven billion, one hundred eleven million, three hundred two thousand, two hundred twenty".