201000012020197 has 16 divisors (see below), whose sum is σ = 227991279093760. Its totient is φ = 175667592998592.

The previous prime is 201000012020117. The next prime is 201000012020207. The reversal of 201000012020197 is 791020210000102.

It is a cyclic number.

It is not a de Polignac number, because 201000012020197 - 2³⁵ = 200965652281829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000012020117) 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, 244257078 + ... + 245078599.

It is an arithmetic number, because the mean of its divisors is an integer number (14249454943360).

Almost surely, 2^{201000012020197} is an apocalyptic number.

It is an amenable number.

201000012020197 is a deficient number, since it is larger than the sum of its proper divisors (26991267073563).

201000012020197 is a wasteful number, since it uses less digits than its factorization.

201000012020197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489337372.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 201000012020197 its reverse (791020210000102), we get a palindrome (992020222020299).

The spelling of 201000012020197 in words is "two hundred one trillion, twelve million, twenty thousand, one hundred ninety-seven".