102010001110021 has 2 divisors, whose sum is σ = 102010001110022. Its totient is φ = 102010001110020.

The previous prime is 102010001110009. The next prime is 102010001110103. The reversal of 102010001110021 is 120011100010201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88695427730625 + 13314573379396 = 9417825^2 + 3648914^2 .

It is a cyclic number.

It is not a de Polignac number, because 102010001110021 - 2³³ = 102001411175429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102010001210021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51005000555010 + 51005000555011.

It is an arithmetic number, because the mean of its divisors is an integer number (51005000555011).

Almost surely, 2^{102010001110021} is an apocalyptic number.

It is an amenable number.

102010001110021 is a deficient number, since it is larger than the sum of its proper divisors (1).

102010001110021 is an equidigital number, since it uses as much as digits as its factorization.

102010001110021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 102010001110021 its reverse (120011100010201), we get a palindrome (222021101120222).

The spelling of 102010001110021 in words is "one hundred two trillion, ten billion, one million, one hundred ten thousand, twenty-one".