200102001121 has 4 divisors (see below), whose sum is σ = 218293092144. Its totient is φ = 181910910100.

The previous prime is 200102001109. The next prime is 200102001179. The reversal of 200102001121 is 121100201002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200102001121 - 2²⁵ = 200068446689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200102001098 and 200102001107.

It is not an unprimeable number, because it can be changed into a prime (200102001721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9095545495 + ... + 9095545516.

It is an arithmetic number, because the mean of its divisors is an integer number (54573273036).

Almost surely, 2^200102001121 is an apocalyptic number.

It is an amenable number.

200102001121 is a deficient number, since it is larger than the sum of its proper divisors (18191091023).

200102001121 is a wasteful number, since it uses less digits than its factorization.

200102001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18191091022.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 200102001121 its reverse (121100201002), we get a palindrome (321202202123).

The spelling of 200102001121 in words is "two hundred billion, one hundred two million, one thousand, one hundred twenty-one".