201999011201 has 8 divisors (see below), whose sum is σ = 219780051624. Its totient is φ = 184538350080.

The previous prime is 201999011183. The next prime is 201999011231. The reversal of 201999011201 is 102110999102.

It can be written as a sum of positive squares in 4 ways, for example, as 2883153025 + 199115858176 = 53695^2 + 446224^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201999011201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201999011231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80093510 + ... + 80096031.

It is an arithmetic number, because the mean of its divisors is an integer number (27472506453).

Almost surely, 2^201999011201 is an apocalyptic number.

It is an amenable number.

201999011201 is a deficient number, since it is larger than the sum of its proper divisors (17781040423).

201999011201 is a wasteful number, since it uses less digits than its factorization.

201999011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160189651.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 201999011201 in words is "two hundred one billion, nine hundred ninety-nine million, eleven thousand, two hundred one".