21222202017011 has 2 divisors, whose sum is σ = 21222202017012. Its totient is φ = 21222202017010.

The previous prime is 21222202017007. The next prime is 21222202017047. The reversal of 21222202017011 is 11071020222212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21222202017011 - 2² = 21222202017007 is a prime.

It is not a weakly prime, because it can be changed into another prime (21222202011011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611101008505 + 10611101008506.

It is an arithmetic number, because the mean of its divisors is an integer number (10611101008506).

Almost surely, 2^{21222202017011} is an apocalyptic number.

21222202017011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222202017011 is an equidigital number, since it uses as much as digits as its factorization.

21222202017011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 21222202017011 its reverse (11071020222212), we get a palindrome (32293222239223).

The spelling of 21222202017011 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred two million, seventeen thousand, eleven".