200001000202121 has 8 divisors (see below), whose sum is σ = 201157458384960. Its totient is φ = 198844546422352.

The previous prime is 200001000202117. The next prime is 200001000202169. The reversal of 200001000202121 is 121202000100002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 200001000202121 - 2² = 200001000202117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200001000202021) 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, 149021756 + ... + 150357858.

It is an arithmetic number, because the mean of its divisors is an integer number (25144682298120).

Almost surely, 2^{200001000202121} is an apocalyptic number.

It is an amenable number.

200001000202121 is a deficient number, since it is larger than the sum of its proper divisors (1156458182839).

200001000202121 is a wasteful number, since it uses less digits than its factorization.

200001000202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201535.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200001000202121 its reverse (121202000100002), we get a palindrome (321203000302123).

The spelling of 200001000202121 in words is "two hundred trillion, one billion, two hundred two thousand, one hundred twenty-one".