200102002122121 has 8 divisors (see below), whose sum is σ = 218363898675744. Its totient is φ = 181851906477120.

The previous prime is 200102002122083. The next prime is 200102002122131. The reversal of 200102002122121 is 121221200201002.

It is a happy number.

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

It is not a de Polignac number, because 200102002122121 - 2²⁵ = 200101968567689 is a prime.

It is a super-2 number, since 2×200102002122121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200102002122095 and 200102002122104.

It is not an unprimeable number, because it can be changed into a prime (200102002122131) 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, 2950191696 + ... + 2950259521.

It is an arithmetic number, because the mean of its divisors is an integer number (27295487334468).

Almost surely, 2^{200102002122121} is an apocalyptic number.

It is an amenable number.

200102002122121 is a deficient number, since it is larger than the sum of its proper divisors (18261896553623).

200102002122121 is a wasteful number, since it uses less digits than its factorization.

200102002122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900454311.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 200102002122121 its reverse (121221200201002), we get a palindrome (321323202323123).

The spelling of 200102002122121 in words is "two hundred trillion, one hundred two billion, two million, one hundred twenty-two thousand, one hundred twenty-one".