11202022001220 has 96 divisors (see below), whose sum is σ = 33211358425728. Its totient is φ = 2811432179712.

The previous prime is 11202022001197. The next prime is 11202022001227. The reversal of 11202022001220 is 2210022020211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11202022001220.

It is not an unprimeable number, because it can be changed into a prime (11202022001227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81136287 + ... + 81274233.

It is an arithmetic number, because the mean of its divisors is an integer number (345951650268).

Almost surely, 2^{11202022001220} is an apocalyptic number.

11202022001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11202022001220 is an abundant number, since it is smaller than the sum of its proper divisors (22009336424508).

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

11202022001220 is a wasteful number, since it uses less digits than its factorization.

11202022001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217589 (or 217587 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 11202022001220 its reverse (2210022020211), we get a palindrome (13412044021431).

The spelling of 11202022001220 in words is "eleven trillion, two hundred two billion, twenty-two million, one thousand, two hundred twenty".