1021200011207 has 2 divisors, whose sum is σ = 1021200011208. Its totient is φ = 1021200011206.

The previous prime is 1021200011203. The next prime is 1021200011213. The reversal of 1021200011207 is 7021100021201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021200011207 - 2² = 1021200011203 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021200011203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510600005603 + 510600005604.

It is an arithmetic number, because the mean of its divisors is an integer number (510600005604).

Almost surely, 2^{1021200011207} is an apocalyptic number.

1021200011207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021200011207 is an equidigital number, since it uses as much as digits as its factorization.

1021200011207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 1021200011207 its reverse (7021100021201), we get a palindrome (8042300032408).

The spelling of 1021200011207 in words is "one trillion, twenty-one billion, two hundred million, eleven thousand, two hundred seven".