200122221020121 has 24 divisors (see below), whose sum is σ = 291198526939944. Its totient is φ = 132430462617600.

The previous prime is 200122221020081. The next prime is 200122221020143. The reversal of 200122221020121 is 121020122221002.

It is a happy number.

200122221020121 is a `hidden beast` number, since 200 + 1 + 22 + 221 + 0 + 201 + 21 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3460303115721 + 196661917904400 = 1860189^2 + 14023620^2 .

It is not a de Polignac number, because 200122221020121 - 2⁷ = 200122221019993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200122221020094 and 200122221020103.

It is not an unprimeable number, because it can be changed into a prime (200122221020171) 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 23 ways as a sum of consecutive naturals, for example, 9096865 + ... + 21977201.

It is an arithmetic number, because the mean of its divisors is an integer number (12133271955831).

Almost surely, 2^{200122221020121} is an apocalyptic number.

It is an amenable number.

200122221020121 is a deficient number, since it is larger than the sum of its proper divisors (91076305919823).

200122221020121 is a wasteful number, since it uses less digits than its factorization.

200122221020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12893081 (or 12893078 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 200122221020121 its reverse (121020122221002), we get a palindrome (321142343241123).

The spelling of 200122221020121 in words is "two hundred trillion, one hundred twenty-two billion, two hundred twenty-one million, twenty thousand, one hundred twenty-one".