11020120110221 has 32 divisors (see below), whose sum is σ = 11650833911808. Its totient is φ = 10407948606720.

The previous prime is 11020120110169. The next prime is 11020120110239. The reversal of 11020120110221 is 12201102102011.

It is a cyclic number.

It is not a de Polignac number, because 11020120110221 - 2¹⁸ = 11020119848077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020120110196 and 11020120110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020120110421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 758275271 + ... + 758289803.

It is an arithmetic number, because the mean of its divisors is an integer number (364088559744).

Almost surely, 2^{11020120110221} is an apocalyptic number.

It is an amenable number.

11020120110221 is a deficient number, since it is larger than the sum of its proper divisors (630713801587).

11020120110221 is a wasteful number, since it uses less digits than its factorization.

11020120110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16061.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11020120110221 its reverse (12201102102011), we get a palindrome (23221222212232).

The spelling of 11020120110221 in words is "eleven trillion, twenty billion, one hundred twenty million, one hundred ten thousand, two hundred twenty-one".