201020120002188 has 36 divisors (see below), whose sum is σ = 510794580686208. Its totient is φ = 66655886211360.

The previous prime is 201020120002187. The next prime is 201020120002189. The reversal of 201020120002188 is 881200021020102.

It is an interprime number because it is at equal distance from previous prime (201020120002187) and next prime (201020120002189).

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (201020120002181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14617512031 + ... + 14617525782.

Almost surely, 2^{201020120002188} is an apocalyptic number.

It is an amenable number.

201020120002188 is an abundant number, since it is smaller than the sum of its proper divisors (309774460684020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201020120002188 is a wasteful number, since it uses less digits than its factorization.

201020120002188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29235038014 (or 29235038009 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The spelling of 201020120002188 in words is "two hundred one trillion, twenty billion, one hundred twenty million, two thousand, one hundred eighty-eight".