11000122221220 has 48 divisors (see below), whose sum is σ = 25204847222016. Its totient is φ = 3999319488000.

The previous prime is 11000122221203. The next prime is 11000122221227. The reversal of 11000122221220 is 2212222100011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11000122221194 and 11000122221203.

It is not an unprimeable number, because it can be changed into a prime (11000122221227) 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, 3313596 + ... + 5742835.

It is an arithmetic number, because the mean of its divisors is an integer number (525100983792).

Almost surely, 2^{11000122221220} is an apocalyptic number.

11000122221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11000122221220 is an abundant number, since it is smaller than the sum of its proper divisors (14204725000796).

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

11000122221220 is a wasteful number, since it uses less digits than its factorization.

11000122221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9061972 (or 9061970 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11000122221220 its reverse (2212222100011), we get a palindrome (13212344321231).

The spelling of 11000122221220 in words is "eleven trillion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty".