201011022023221 has 2 divisors, whose sum is σ = 201011022023222. Its totient is φ = 201011022023220.

The previous prime is 201011022023213. The next prime is 201011022023263. The reversal of 201011022023221 is 122320220110102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197274103884900 + 3736918138321 = 14045430^2 + 1933111^2 .

It is a cyclic number.

It is not a de Polignac number, because 201011022023221 - 2³ = 201011022023213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201011022033221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505511011610 + 100505511011611.

It is an arithmetic number, because the mean of its divisors is an integer number (100505511011611).

Almost surely, 2^{201011022023221} is an apocalyptic number.

It is an amenable number.

201011022023221 is a deficient number, since it is larger than the sum of its proper divisors (1).

201011022023221 is an equidigital number, since it uses as much as digits as its factorization.

201011022023221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 201011022023221 its reverse (122320220110102), we get a palindrome (323331242133323).

The spelling of 201011022023221 in words is "two hundred one trillion, eleven billion, twenty-two million, twenty-three thousand, two hundred twenty-one".