200000000000121 has 8 divisors (see below), whose sum is σ = 267841409692704. Its totient is φ = 132745961820480.

The previous prime is 200000000000041. The next prime is 200000000000123. The reversal of 200000000000121 is 121000000000002.

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 200000000000121 - 2¹⁴ = 199999999983737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200000000000123) 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, 146842877440 + ... + 146842878801.

It is an arithmetic number, because the mean of its divisors is an integer number (33480176211588).

Almost surely, 2^{200000000000121} is an apocalyptic number.

It is an amenable number.

200000000000121 is a deficient number, since it is larger than the sum of its proper divisors (67841409692583).

200000000000121 is a wasteful number, since it uses less digits than its factorization.

200000000000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293685756471.

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 200000000000121 its reverse (121000000000002), we get a palindrome (321000000000123).

The spelling of 200000000000121 in words is "two hundred trillion, one hundred twenty-one", and thus it is an aban number.