21101220022307 has 2 divisors, whose sum is σ = 21101220022308. Its totient is φ = 21101220022306.

The previous prime is 21101220022279. The next prime is 21101220022349. The reversal of 21101220022307 is 70322002210112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21101220022307 - 2⁶ = 21101220022243 is a prime.

It is a super-2 number, since 2×21101220022307² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21101220022397) 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, 10550610011153 + 10550610011154.

It is an arithmetic number, because the mean of its divisors is an integer number (10550610011154).

Almost surely, 2^{21101220022307} is an apocalyptic number.

21101220022307 is a deficient number, since it is larger than the sum of its proper divisors (1).

21101220022307 is an equidigital number, since it uses as much as digits as its factorization.

21101220022307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 21101220022307 its reverse (70322002210112), we get a palindrome (91423222232419).

The spelling of 21101220022307 in words is "twenty-one trillion, one hundred one billion, two hundred twenty million, twenty-two thousand, three hundred seven".