1011220001201 has 4 divisors (see below), whose sum is σ = 1011237542400. Its totient is φ = 1011202460004.

The previous prime is 1011220001189. The next prime is 1011220001237. The reversal of 1011220001201 is 1021000221101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1011220001201 - 2¹⁰ = 1011220000177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011220001291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8683841 + ... + 8799518.

It is an arithmetic number, because the mean of its divisors is an integer number (252809385600).

Almost surely, 2^{1011220001201} is an apocalyptic number.

It is an amenable number.

1011220001201 is a deficient number, since it is larger than the sum of its proper divisors (17541199).

1011220001201 is an equidigital number, since it uses as much as digits as its factorization.

1011220001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17541198.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1011220001201 its reverse (1021000221101), we get a palindrome (2032220222302).

The spelling of 1011220001201 in words is "one trillion, eleven billion, two hundred twenty million, one thousand, two hundred one".