201220220021011 has 4 divisors (see below), whose sum is σ = 201228735860800. Its totient is φ = 201211704181224.

The previous prime is 201220220020987. The next prime is 201220220021077. The reversal of 201220220021011 is 110120022022102.

It is a happy number.

201220220021011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 201220220021011 - 2⁹ = 201220220020499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201220220028011) 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, 4257884451 + ... + 4257931708.

It is an arithmetic number, because the mean of its divisors is an integer number (50307183965200).

Almost surely, 2^{201220220021011} is an apocalyptic number.

201220220021011 is a deficient number, since it is larger than the sum of its proper divisors (8515839789).

201220220021011 is an equidigital number, since it uses as much as digits as its factorization.

201220220021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8515839788.

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

Adding to 201220220021011 its reverse (110120022022102), we get a palindrome (311340242043113).

The spelling of 201220220021011 in words is "two hundred one trillion, two hundred twenty billion, two hundred twenty million, twenty-one thousand, eleven".