1011201030221 has 2 divisors, whose sum is σ = 1011201030222. Its totient is φ = 1011201030220.

The previous prime is 1011201030199. The next prime is 1011201030223. The reversal of 1011201030221 is 1220301021101.

1011201030221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 938980380100 + 72220650121 = 969010^2 + 268739^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011201030221 - 2⁶ = 1011201030157 is a prime.

Together with 1011201030223, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011201030196 and 1011201030205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011201030223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505600515110 + 505600515111.

It is an arithmetic number, because the mean of its divisors is an integer number (505600515111).

Almost surely, 2^{1011201030221} is an apocalyptic number.

It is an amenable number.

1011201030221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011201030221 is an equidigital number, since it uses as much as digits as its factorization.

1011201030221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1011201030221 its reverse (1220301021101), we get a palindrome (2231502051322).

The spelling of 1011201030221 in words is "one trillion, eleven billion, two hundred one million, thirty thousand, two hundred twenty-one".