201021011222093 has 2 divisors, whose sum is σ = 201021011222094. Its totient is φ = 201021011222092.

The previous prime is 201021011222021. The next prime is 201021011222107. The reversal of 201021011222093 is 390222110120102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104998611215689 + 96022400006404 = 10246883^2 + 9799102^2 .

It is a cyclic number.

It is not a de Polignac number, because 201021011222093 - 2²⁰ = 201021010173517 is a prime.

It is a super-3 number, since 3×201021011222093³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201021011222293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510505611046 + 100510505611047.

It is an arithmetic number, because the mean of its divisors is an integer number (100510505611047).

Almost surely, 2^{201021011222093} is an apocalyptic number.

It is an amenable number.

201021011222093 is a deficient number, since it is larger than the sum of its proper divisors (1).

201021011222093 is an equidigital number, since it uses as much as digits as its factorization.

201021011222093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 201021011222093 its reverse (390222110120102), we get a palindrome (591243121342195).

The spelling of 201021011222093 in words is "two hundred one trillion, twenty-one billion, eleven million, two hundred twenty-two thousand, ninety-three".