102211024021 has 2 divisors, whose sum is σ = 102211024022. Its totient is φ = 102211024020.

The previous prime is 102211023931. The next prime is 102211024057. The reversal of 102211024021 is 120420112201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70535923396 + 31675100625 = 265586^2 + 177975^2 .

It is a cyclic number.

It is not a de Polignac number, because 102211024021 - 2²⁹ = 101674153109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102211023986 and 102211024004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102211024061) 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, 51105512010 + 51105512011.

It is an arithmetic number, because the mean of its divisors is an integer number (51105512011).

Almost surely, 2^102211024021 is an apocalyptic number.

It is an amenable number.

102211024021 is a deficient number, since it is larger than the sum of its proper divisors (1).

102211024021 is an equidigital number, since it uses as much as digits as its factorization.

102211024021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102211024021 its reverse (120420112201), we get a palindrome (222631136222).

The spelling of 102211024021 in words is "one hundred two billion, two hundred eleven million, twenty-four thousand, twenty-one".