11001200122220 has 48 divisors (see below), whose sum is σ = 28803142142208. Its totient is φ = 3428945492160.

The previous prime is 11001200122219. The next prime is 11001200122223. The reversal of 11001200122220 is 2222100210011.

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 = 11001200122195 and 11001200122204.

It is not an unprimeable number, because it can be changed into a prime (11001200122223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3571816682 + ... + 3571819761.

It is an arithmetic number, because the mean of its divisors is an integer number (600065461296).

Almost surely, 2^{11001200122220} is an apocalyptic number.

11001200122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11001200122220 is an abundant number, since it is smaller than the sum of its proper divisors (17801942019988).

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

11001200122220 is a wasteful number, since it uses less digits than its factorization.

11001200122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7143636470 (or 7143636468 counting only the distinct ones).

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

Adding to 11001200122220 its reverse (2222100210011), we get a palindrome (13223300332231).

The spelling of 11001200122220 in words is "eleven trillion, one billion, two hundred million, one hundred twenty-two thousand, two hundred twenty".