201002011121 has 12 divisors (see below), whose sum is σ = 213688504320. Its totient is φ = 189030104640.

The previous prime is 201002011117. The next prime is 201002011141. The reversal of 201002011121 is 121110200102.

It is not a de Polignac number, because 201002011121 - 2² = 201002011117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201002011141) 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, 97736 + ... + 641526.

It is an arithmetic number, because the mean of its divisors is an integer number (17807375360).

Almost surely, 2^201002011121 is an apocalyptic number.

It is an amenable number.

201002011121 is a deficient number, since it is larger than the sum of its proper divisors (12686493199).

201002011121 is a wasteful number, since it uses less digits than its factorization.

201002011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545104 (or 545087 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201002011121 its reverse (121110200102), we get a palindrome (322112211223).

The spelling of 201002011121 in words is "two hundred one billion, two million, eleven thousand, one hundred twenty-one".