200201021097 has 16 divisors (see below), whose sum is σ = 332801697792. Its totient is φ = 104000530320.

The previous prime is 200201021089. The next prime is 200201021099. The reversal of 200201021097 is 790120102002.

It is not a de Polignac number, because 200201021097 - 2³ = 200201021089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200201021099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433335313 + ... + 433335774.

It is an arithmetic number, because the mean of its divisors is an integer number (20800106112).

Almost surely, 2^200201021097 is an apocalyptic number.

It is an amenable number.

200201021097 is a deficient number, since it is larger than the sum of its proper divisors (132600676695).

200201021097 is a wasteful number, since it uses less digits than its factorization.

200201021097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866671108.

The product of its (nonzero) digits is 504, while the sum is 24.

Adding to 200201021097 its reverse (790120102002), we get a palindrome (990321123099).

The spelling of 200201021097 in words is "two hundred billion, two hundred one million, twenty-one thousand, ninety-seven".