1021210112201 has 2 divisors, whose sum is σ = 1021210112202. Its totient is φ = 1021210112200.

The previous prime is 1021210112189. The next prime is 1021210112213. The reversal of 1021210112201 is 1022110121201.

It is a balanced prime because it is at equal distance from previous prime (1021210112189) and next prime (1021210112213).

It can be written as a sum of positive squares in only one way, i.e., 1021160775625 + 49336576 = 1010525^2 + 7024^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021210112201 - 2¹⁰ = 1021210111177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021210112291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510605056100 + 510605056101.

It is an arithmetic number, because the mean of its divisors is an integer number (510605056101).

Almost surely, 2^{1021210112201} is an apocalyptic number.

It is an amenable number.

1021210112201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021210112201 is an equidigital number, since it uses as much as digits as its factorization.

1021210112201 is an evil number, because the sum of its binary digits is even.

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

Adding to 1021210112201 its reverse (1022110121201), we get a palindrome (2043320233402).

The spelling of 1021210112201 in words is "one trillion, twenty-one billion, two hundred ten million, one hundred twelve thousand, two hundred one".