9021101120221 has 2 divisors, whose sum is σ = 9021101120222. Its totient is φ = 9021101120220.

The previous prime is 9021101120191. The next prime is 9021101120249. The reversal of 9021101120221 is 1220211011209.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7712339952100 + 1308761168121 = 2777110^2 + 1144011^2 .

It is a cyclic number.

It is not a de Polignac number, because 9021101120221 - 2⁵ = 9021101120189 is a prime.

It is a super-3 number, since 3×9021101120221³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9021101120192 and 9021101120201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9021101120821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4510550560110 + 4510550560111.

It is an arithmetic number, because the mean of its divisors is an integer number (4510550560111).

Almost surely, 2^{9021101120221} is an apocalyptic number.

It is an amenable number.

9021101120221 is a deficient number, since it is larger than the sum of its proper divisors (1).

9021101120221 is an equidigital number, since it uses as much as digits as its factorization.

9021101120221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 9021101120221 in words is "nine trillion, twenty-one billion, one hundred one million, one hundred twenty thousand, two hundred twenty-one".