201223001133001 has 4 divisors (see below), whose sum is σ = 201223032153732. Its totient is φ = 201222970112272.

The previous prime is 201223001132977. The next prime is 201223001133019. The reversal of 201223001133001 is 100331100322102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107884679430025 + 93338321702976 = 10386755^2 + 9661176^2 .

It is a cyclic number.

It is not a de Polignac number, because 201223001133001 - 2⁷ = 201223001132873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201223001133001.

It is not an unprimeable number, because it can be changed into a prime (201223001133031) 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, 1654066 + ... + 20129131.

It is an arithmetic number, because the mean of its divisors is an integer number (50305758038433).

Almost surely, 2^{201223001133001} is an apocalyptic number.

It is an amenable number.

201223001133001 is a deficient number, since it is larger than the sum of its proper divisors (31020731).

201223001133001 is an equidigital number, since it uses as much as digits as its factorization.

201223001133001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31020730.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 201223001133001 its reverse (100331100322102), we get a palindrome (301554101455103).

The spelling of 201223001133001 in words is "two hundred one trillion, two hundred twenty-three billion, one million, one hundred thirty-three thousand, one".