11220220020000 has 240 divisors, whose sum is σ = 36857206818432. Its totient is φ = 2987779200000.

The previous prime is 11220220019993. The next prime is 11220220020013. The reversal of 11220220020000 is 2002202211.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 41926617 + ... + 42193383.

Almost surely, 2^{11220220020000} is an apocalyptic number.

11220220020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11220220020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18428603409216).

11220220020000 is an abundant number, since it is smaller than the sum of its proper divisors (25636986798432).

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

11220220020000 is an equidigital number, since it uses as much as digits as its factorization.

11220220020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267501 (or 267478 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 11220220020000 its reverse (2002202211), we get a palindrome (11222222222211).

The spelling of 11220220020000 in words is "eleven trillion, two hundred twenty billion, two hundred twenty million, twenty thousand".