201020022021111 has 16 divisors (see below), whose sum is σ = 268320179334144. Its totient is φ = 133866614291904.

The previous prime is 201020022021103. The next prime is 201020022021151. The reversal of 201020022021111 is 111120220020102.

It is not a de Polignac number, because 201020022021111 - 2³ = 201020022021103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020022021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102379536 + ... + 104324538.

It is an arithmetic number, because the mean of its divisors is an integer number (16770011208384).

Almost surely, 2^{201020022021111} is an apocalyptic number.

201020022021111 is a deficient number, since it is larger than the sum of its proper divisors (67300157313033).

201020022021111 is a wasteful number, since it uses less digits than its factorization.

201020022021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982710.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201020022021111 its reverse (111120220020102), we get a palindrome (312140242041213).

The spelling of 201020022021111 in words is "two hundred one trillion, twenty billion, twenty-two million, twenty-one thousand, one hundred eleven".