1021112201201 has 2 divisors, whose sum is σ = 1021112201202. Its totient is φ = 1021112201200.

The previous prime is 1021112201171. The next prime is 1021112201261. The reversal of 1021112201201 is 1021022111201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 948130638400 + 72981562801 = 973720^2 + 270151^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021112201201 - 2¹⁰ = 1021112200177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021112201261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510556100600 + 510556100601.

It is an arithmetic number, because the mean of its divisors is an integer number (510556100601).

Almost surely, 2^{1021112201201} is an apocalyptic number.

It is an amenable number.

1021112201201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021112201201 is an equidigital number, since it uses as much as digits as its factorization.

1021112201201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021112201201 its reverse (1021022111201), we get a palindrome (2042134312402).

The spelling of 1021112201201 in words is "one trillion, twenty-one billion, one hundred twelve million, two hundred one thousand, two hundred one".