102120021067 has 2 divisors, whose sum is σ = 102120021068. Its totient is φ = 102120021066.

The previous prime is 102120021013. The next prime is 102120021077. The reversal of 102120021067 is 760120021201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102120021067 - 2¹¹ = 102120019019 is a prime.

It is not a weakly prime, because it can be changed into another prime (102120021077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060010533 + 51060010534.

It is an arithmetic number, because the mean of its divisors is an integer number (51060010534).

Almost surely, 2^102120021067 is an apocalyptic number.

102120021067 is a deficient number, since it is larger than the sum of its proper divisors (1).

102120021067 is an equidigital number, since it uses as much as digits as its factorization.

102120021067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 102120021067 its reverse (760120021201), we get a palindrome (862240042268).

The spelling of 102120021067 in words is "one hundred two billion, one hundred twenty million, twenty-one thousand, sixty-seven".