11121011010221 has 64 divisors (see below), whose sum is σ = 13738127800320. Its totient is φ = 8789053962240.

The previous prime is 11121011010211. The next prime is 11121011010227. The reversal of 11121011010221 is 12201011012111.

It is a cyclic number.

It is not a de Polignac number, because 11121011010221 - 2³⁴ = 11103831141037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11121011010196 and 11121011010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121011010227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6835285610 + ... + 6835287236.

It is an arithmetic number, because the mean of its divisors is an integer number (214658246880).

Almost surely, 2^{11121011010221} is an apocalyptic number.

It is an amenable number.

11121011010221 is a deficient number, since it is larger than the sum of its proper divisors (2617116790099).

11121011010221 is a wasteful number, since it uses less digits than its factorization.

11121011010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11121011010221 its reverse (12201011012111), we get a palindrome (23322022022332).

The spelling of 11121011010221 in words is "eleven trillion, one hundred twenty-one billion, eleven million, ten thousand, two hundred twenty-one".