10421220011 has 2 divisors, whose sum is σ = 10421220012. Its totient is φ = 10421220010.

The previous prime is 10421219989. The next prime is 10421220013. The reversal of 10421220011 is 11002212401.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (11002212401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10421220011 - 2⁶ = 10421219947 is a prime.

It is a Sophie Germain prime.

Together with 10421220013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10421220013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210610005 + 5210610006.

It is an arithmetic number, because the mean of its divisors is an integer number (5210610006).

Almost surely, 2^10421220011 is an apocalyptic number.

10421220011 is a deficient number, since it is larger than the sum of its proper divisors (1).

10421220011 is an equidigital number, since it uses as much as digits as its factorization.

10421220011 is an evil number, because the sum of its binary digits is even.

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

Adding to 10421220011 its reverse (11002212401), we get a palindrome (21423432412).

The spelling of 10421220011 in words is "ten billion, four hundred twenty-one million, two hundred twenty thousand, eleven".