202011200020191 has 16 divisors (see below), whose sum is σ = 269404275827808. Its totient is φ = 134646129715200.

The previous prime is 202011200020187. The next prime is 202011200020211. The reversal of 202011200020191 is 191020002110202.

It is not a de Polignac number, because 202011200020191 - 2² = 202011200020187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202011200020111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1546053135 + ... + 1546183791.

It is an arithmetic number, because the mean of its divisors is an integer number (16837767239238).

Almost surely, 2^{202011200020191} is an apocalyptic number.

202011200020191 is a deficient number, since it is larger than the sum of its proper divisors (67393075807617).

202011200020191 is a wasteful number, since it uses less digits than its factorization.

202011200020191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233882.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 202011200020191 its reverse (191020002110202), we get a palindrome (393031202130393).

The spelling of 202011200020191 in words is "two hundred two trillion, eleven billion, two hundred million, twenty thousand, one hundred ninety-one".