11210021120221 has 192 divisors, whose sum is σ = 15026968958976. Its totient is φ = 8262910656000.

The previous prime is 11210021120197. The next prime is 11210021120227. The reversal of 11210021120221 is 12202112001211.

It is not a de Polignac number, because 11210021120221 - 2¹¹ = 11210021118173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11210021120195 and 11210021120204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210021120227) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 19911227286 + ... + 19911227848.

It is an arithmetic number, because the mean of its divisors is an integer number (78265463328).

Almost surely, 2^{11210021120221} is an apocalyptic number.

11210021120221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11210021120221 is a deficient number, since it is larger than the sum of its proper divisors (3816947838755).

11210021120221 is a wasteful number, since it uses less digits than its factorization.

11210021120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11210021120221 its reverse (12202112001211), we get a palindrome (23412133121432).

The spelling of 11210021120221 in words is "eleven trillion, two hundred ten billion, twenty-one million, one hundred twenty thousand, two hundred twenty-one".