200102210011121 has 4 divisors (see below), whose sum is σ = 218293320012144. Its totient is φ = 181911100010100.

The previous prime is 200102210011111. The next prime is 200102210011243. The reversal of 200102210011121 is 121110012201002.

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 a de Polignac number, because none of the positive numbers 2^k-200102210011121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200102210011096 and 200102210011105.

It is not an unprimeable number, because it can be changed into a prime (200102210011111) 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, 9095555000495 + ... + 9095555000516.

It is an arithmetic number, because the mean of its divisors is an integer number (54573330003036).

Almost surely, 2^{200102210011121} is an apocalyptic number.

It is an amenable number.

200102210011121 is a deficient number, since it is larger than the sum of its proper divisors (18191110001023).

200102210011121 is a wasteful number, since it uses less digits than its factorization.

200102210011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18191110001022.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 200102210011121 its reverse (121110012201002), we get a palindrome (321212222212123).

The spelling of 200102210011121 in words is "two hundred trillion, one hundred two billion, two hundred ten million, eleven thousand, one hundred twenty-one".