11022121210221 has 96 divisors (see below), whose sum is σ = 17674720487424. Its totient is φ = 6563146176000.

The previous prime is 11022121210171. The next prime is 11022121210283. The reversal of 11022121210221 is 12201212122011.

11022121210221 is a `hidden beast` number, since 1 + 1 + 0 + 221 + 212 + 10 + 221 = 666.

It is not a de Polignac number, because 11022121210221 - 2²³ = 11022112821613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11022121210194 and 11022121210203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022121210721) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1606017436 + ... + 1606024298.

It is an arithmetic number, because the mean of its divisors is an integer number (184111671744).

Almost surely, 2^{11022121210221} is an apocalyptic number.

11022121210221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11022121210221 is a deficient number, since it is larger than the sum of its proper divisors (6652599277203).

11022121210221 is a wasteful number, since it uses less digits than its factorization.

11022121210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8015 (or 8012 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11022121210221 its reverse (12201212122011), we get a palindrome (23223333332232).

The spelling of 11022121210221 in words is "eleven trillion, twenty-two billion, one hundred twenty-one million, two hundred ten thousand, two hundred twenty-one".