1001011220201 has 16 divisors (see below), whose sum is σ = 1074052877184. Its totient is φ = 929572141824.

The previous prime is 1001011220119. The next prime is 1001011220227. The reversal of 1001011220201 is 1020221101001.

1001011220201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001011220201 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 (1001011280201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631820 + ... + 1549586.

It is an arithmetic number, because the mean of its divisors is an integer number (67128304824).

Almost surely, 2^{1001011220201} is an apocalyptic number.

It is an amenable number.

1001011220201 is a deficient number, since it is larger than the sum of its proper divisors (73041656983).

1001011220201 is an equidigital number, since it uses as much as digits as its factorization.

1001011220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918640.

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

Adding to 1001011220201 its reverse (1020221101001), we get a palindrome (2021232321202).

The spelling of 1001011220201 in words is "one trillion, one billion, eleven million, two hundred twenty thousand, two hundred one".