11221022302121 has 4 divisors (see below), whose sum is σ = 11228744961732. Its totient is φ = 11213299642512.

The previous prime is 11221022302117. The next prime is 11221022302151. The reversal of 11221022302121 is 12120322012211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10954848855721 + 266173446400 = 3309811^2 + 515920^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221022302121 - 2² = 11221022302117 is a prime.

It is a super-2 number, since 2×11221022302121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11221022302093 and 11221022302102.

It is not an unprimeable number, because it can be changed into a prime (11221022302111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3861327626 + ... + 3861330531.

It is an arithmetic number, because the mean of its divisors is an integer number (2807186240433).

Almost surely, 2^{11221022302121} is an apocalyptic number.

It is an amenable number.

11221022302121 is a deficient number, since it is larger than the sum of its proper divisors (7722659611).

11221022302121 is an equidigital number, since it uses as much as digits as its factorization.

11221022302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7722659610.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11221022302121 its reverse (12120322012211), we get a palindrome (23341344314332).

The spelling of 11221022302121 in words is "eleven trillion, two hundred twenty-one billion, twenty-two million, three hundred two thousand, one hundred twenty-one".