201020022221011 has 4 divisors (see below), whose sum is σ = 229737168252592. Its totient is φ = 172302876189432.

The previous prime is 201020022221003. The next prime is 201020022221021. The reversal of 201020022221011 is 110122220020102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201020022221011 - 2³ = 201020022221003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201020022221021) 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, 14358573015780 + ... + 14358573015793.

It is an arithmetic number, because the mean of its divisors is an integer number (57434292063148).

Almost surely, 2^{201020022221011} is an apocalyptic number.

201020022221011 is a deficient number, since it is larger than the sum of its proper divisors (28717146031581).

201020022221011 is an equidigital number, since it uses as much as digits as its factorization.

201020022221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28717146031580.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201020022221011 its reverse (110122220020102), we get a palindrome (311142242241113).

The spelling of 201020022221011 in words is "two hundred one trillion, twenty billion, twenty-two million, two hundred twenty-one thousand, eleven".