11001002002220 has 24 divisors (see below), whose sum is σ = 24318004426800. Its totient is φ = 4168800758592.

The previous prime is 11001002002219. The next prime is 11001002002231. The reversal of 11001002002220 is 2220020010011.

It is a happy number.

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, 14475002255 + ... + 14475003014.

It is an arithmetic number, because the mean of its divisors is an integer number (1013250184450).

Almost surely, 2^{11001002002220} is an apocalyptic number.

11001002002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11001002002220 is an abundant number, since it is smaller than the sum of its proper divisors (13317002424580).

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

11001002002220 is a wasteful number, since it uses less digits than its factorization.

11001002002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28950005297 (or 28950005295 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11001002002220 its reverse (2220020010011), we get a palindrome (13221022012231).

The spelling of 11001002002220 in words is "eleven trillion, one billion, two million, two thousand, two hundred twenty".