101120406221 has 2 divisors, whose sum is σ = 101120406222. Its totient is φ = 101120406220.

The previous prime is 101120406203. The next prime is 101120406227. The reversal of 101120406221 is 122604021101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94179016996 + 6941389225 = 306886^2 + 83315^2 .

It is a cyclic number.

It is not a de Polignac number, because 101120406221 - 2¹⁴ = 101120389837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101120406193 and 101120406202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101120406227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50560203110 + 50560203111.

It is an arithmetic number, because the mean of its divisors is an integer number (50560203111).

Almost surely, 2^101120406221 is an apocalyptic number.

It is an amenable number.

101120406221 is a deficient number, since it is larger than the sum of its proper divisors (1).

101120406221 is an equidigital number, since it uses as much as digits as its factorization.

101120406221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 101120406221 its reverse (122604021101), we get a palindrome (223724427322).

The spelling of 101120406221 in words is "one hundred one billion, one hundred twenty million, four hundred six thousand, two hundred twenty-one".