20212140241 has 2 divisors, whose sum is σ = 20212140242. Its totient is φ = 20212140240.

The previous prime is 20212140217. The next prime is 20212140281. The reversal of 20212140241 is 14204121202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10436665600 + 9775474641 = 102160^2 + 98871^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212140241 - 2¹³ = 20212132049 is a prime.

It is a super-2 number, since 2×20212140241² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20212140281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106070120 + 10106070121.

It is an arithmetic number, because the mean of its divisors is an integer number (10106070121).

Almost surely, 2^20212140241 is an apocalyptic number.

It is an amenable number.

20212140241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212140241 is an equidigital number, since it uses as much as digits as its factorization.

20212140241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20212140241 its reverse (14204121202), we get a palindrome (34416261443).

The spelling of 20212140241 in words is "twenty billion, two hundred twelve million, one hundred forty thousand, two hundred forty-one".