421000212011 has 2 divisors, whose sum is σ = 421000212012. Its totient is φ = 421000212010.

The previous prime is 421000212007. The next prime is 421000212037. The reversal of 421000212011 is 110212000124.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421000212011 - 2² = 421000212007 is a prime.

It is not a weakly prime, because it can be changed into another prime (421000212211) 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, 210500106005 + 210500106006.

It is an arithmetic number, because the mean of its divisors is an integer number (210500106006).

Almost surely, 2^421000212011 is an apocalyptic number.

421000212011 is a deficient number, since it is larger than the sum of its proper divisors (1).

421000212011 is an equidigital number, since it uses as much as digits as its factorization.

421000212011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 421000212011 its reverse (110212000124), we get a palindrome (531212212135).

The spelling of 421000212011 in words is "four hundred twenty-one billion, two hundred twelve thousand, eleven".