11220303020 has 24 divisors (see below), whose sum is σ = 23617071744. Its totient is φ = 4477752576.

The previous prime is 11220303001. The next prime is 11220303067. The reversal of 11220303020 is 2030302211.

It is a happy number.

It is a super-2 number, since 2×11220303020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11220302986 and 11220303004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639164 + ... + 656483.

It is an arithmetic number, because the mean of its divisors is an integer number (984044656).

Almost surely, 2^11220303020 is an apocalyptic number.

11220303020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220303020 is an abundant number, since it is smaller than the sum of its proper divisors (12396768724).

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

11220303020 is a wasteful number, since it uses less digits than its factorization.

11220303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296089 (or 1296087 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 11220303020 its reverse (2030302211), we get a palindrome (13250605231).

The spelling of 11220303020 in words is "eleven billion, two hundred twenty million, three hundred three thousand, twenty".