1002120021127 has 2 divisors, whose sum is σ = 1002120021128. Its totient is φ = 1002120021126.

The previous prime is 1002120021109. The next prime is 1002120021137. The reversal of 1002120021127 is 7211200212001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002120021127 - 2⁷ = 1002120020999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002120021137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501060010563 + 501060010564.

It is an arithmetic number, because the mean of its divisors is an integer number (501060010564).

Almost surely, 2^{1002120021127} is an apocalyptic number.

1002120021127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002120021127 is an equidigital number, since it uses as much as digits as its factorization.

1002120021127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 1002120021127 its reverse (7211200212001), we get a palindrome (8213320233128).

The spelling of 1002120021127 in words is "one trillion, two billion, one hundred twenty million, twenty-one thousand, one hundred twenty-seven".