200202000121123 has 64 divisors (see below), whose sum is σ = 285627478348800. Its totient is φ = 135048446668800.

The previous prime is 200202000121117. The next prime is 200202000121127. The reversal of 200202000121123 is 321121000202002.

It is a happy number.

It is not a de Polignac number, because 200202000121123 - 2²⁹ = 200201463250211 is a prime.

It is a super-2 number, since 2×200202000121123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200202000121097 and 200202000121106.

It is not an unprimeable number, because it can be changed into a prime (200202000121127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16152073 + ... + 25715626.

It is an arithmetic number, because the mean of its divisors is an integer number (4462929349200).

Almost surely, 2^{200202000121123} is an apocalyptic number.

200202000121123 is a deficient number, since it is larger than the sum of its proper divisors (85425478227677).

200202000121123 is a wasteful number, since it uses less digits than its factorization.

200202000121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41868028.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 200202000121123 its reverse (321121000202002), we get a palindrome (521323000323125).

The spelling of 200202000121123 in words is "two hundred trillion, two hundred two billion, one hundred twenty-one thousand, one hundred twenty-three".