1210220020201 has 8 divisors (see below), whose sum is σ = 1282870577160. Its totient is φ = 1137731812608.

The previous prime is 1210220020199. The next prime is 1210220020237. The reversal of 1210220020201 is 1020200220121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 470102209600 + 740117810601 = 685640^2 + 860301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1210220020201 - 2¹ = 1210220020199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210220020301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40571986 + ... + 40601803.

It is an arithmetic number, because the mean of its divisors is an integer number (160358822145).

Almost surely, 2^{1210220020201} is an apocalyptic number.

It is an amenable number.

1210220020201 is a deficient number, since it is larger than the sum of its proper divisors (72650556959).

1210220020201 is an equidigital number, since it uses as much as digits as its factorization.

1210220020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81174683.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1210220020201 its reverse (1020200220121), we get a palindrome (2230420240322).

The spelling of 1210220020201 in words is "one trillion, two hundred ten billion, two hundred twenty million, twenty thousand, two hundred one".