201210012141421 has 2 divisors, whose sum is σ = 201210012141422. Its totient is φ = 201210012141420.

The previous prime is 201210012141343. The next prime is 201210012141473. The reversal of 201210012141421 is 124141210012102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177879276705321 + 23330735436100 = 13337139^2 + 4830190^2 .

It is a cyclic number.

It is not a de Polignac number, because 201210012141421 - 2¹⁹ = 201210011617133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201210012141392 and 201210012141401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201210012141521) 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, 100605006070710 + 100605006070711.

It is an arithmetic number, because the mean of its divisors is an integer number (100605006070711).

Almost surely, 2^{201210012141421} is an apocalyptic number.

It is an amenable number.

201210012141421 is a deficient number, since it is larger than the sum of its proper divisors (1).

201210012141421 is an equidigital number, since it uses as much as digits as its factorization.

201210012141421 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 22.

Adding to 201210012141421 its reverse (124141210012102), we get a palindrome (325351222153523).

The spelling of 201210012141421 in words is "two hundred one trillion, two hundred ten billion, twelve million, one hundred forty-one thousand, four hundred twenty-one".