11221021202120 has 64 divisors (see below), whose sum is σ = 25786835136000. Its totient is φ = 4392508204800.

The previous prime is 11221021202119. The next prime is 11221021202161. The reversal of 11221021202120 is 2120212012211.

11221021202120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11221021202120² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20692445 + ... + 21227795.

It is an arithmetic number, because the mean of its divisors is an integer number (402919299000).

Almost surely, 2^{11221021202120} is an apocalyptic number.

11221021202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221021202120 is an abundant number, since it is smaller than the sum of its proper divisors (14565813933880).

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

11221021202120 is a wasteful number, since it uses less digits than its factorization.

11221021202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546558 (or 546554 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11221021202120 its reverse (2120212012211), we get a palindrome (13341233214331).

The spelling of 11221021202120 in words is "eleven trillion, two hundred twenty-one billion, twenty-one million, two hundred two thousand, one hundred twenty".