11202021012220 has 48 divisors (see below), whose sum is σ = 23711457143808. Its totient is φ = 4445154685440.

The previous prime is 11202021012197. The next prime is 11202021012319. The reversal of 11202021012220 is 2221012020211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11202021012194 and 11202021012203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31249200 + ... + 31605640.

It is an arithmetic number, because the mean of its divisors is an integer number (493988690496).

Almost surely, 2^{11202021012220} is an apocalyptic number.

11202021012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11202021012220 is an abundant number, since it is smaller than the sum of its proper divisors (12509436131588).

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

11202021012220 is a wasteful number, since it uses less digits than its factorization.

11202021012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368950 (or 368948 counting only the distinct ones).

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

Adding to 11202021012220 its reverse (2221012020211), we get a palindrome (13423033032431).

The spelling of 11202021012220 in words is "eleven trillion, two hundred two billion, twenty-one million, twelve thousand, two hundred twenty".