1000220201201 has 6 divisors (see below), whose sum is σ = 1083078679590. Its totient is φ = 923280185568.

The previous prime is 1000220201137. The next prime is 1000220201231. The reversal of 1000220201201 is 1021020220001.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 79819810576 + 920400390625 = 282524^2 + 959375^2 .

It is not a de Polignac number, because 1000220201201 - 2⁶ = 1000220201137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1000220201231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2959231196 + ... + 2959231533.

It is an arithmetic number, because the mean of its divisors is an integer number (180513113265).

Almost surely, 2^{1000220201201} is an apocalyptic number.

It is an amenable number.

1000220201201 is a deficient number, since it is larger than the sum of its proper divisors (82858478389).

1000220201201 is an equidigital number, since it uses as much as digits as its factorization.

1000220201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5918462755 (or 5918462742 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1000220201201 its reverse (1021020220001), we get a palindrome (2021240421202).

The spelling of 1000220201201 in words is "one trillion, two hundred twenty million, two hundred one thousand, two hundred one".