1021210200001 has 2 divisors, whose sum is σ = 1021210200002. Its totient is φ = 1021210200000.

The previous prime is 1021210199941. The next prime is 1021210200011. The reversal of 1021210200001 is 1000020121201.

It is an a-pointer prime, because the next prime (1021210200011) can be obtained adding 1021210200001 to its sum of digits (10).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 788091185025 + 233119014976 = 887745^2 + 482824^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021210200001 - 2¹³ = 1021210191809 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021210200011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510605100000 + 510605100001.

It is an arithmetic number, because the mean of its divisors is an integer number (510605100001).

Almost surely, 2^{1021210200001} is an apocalyptic number.

It is an amenable number.

1021210200001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021210200001 is an equidigital number, since it uses as much as digits as its factorization.

1021210200001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1021210200001 its reverse (1000020121201), we get a palindrome (2021230321202).

The spelling of 1021210200001 in words is "one trillion, twenty-one billion, two hundred ten million, two hundred thousand, one".