200122021121 has 24 divisors (see below), whose sum is σ = 232395730560. Its totient is φ = 171918195680.

The previous prime is 200122021087. The next prime is 200122021159. The reversal of 200122021121 is 121120221002.

It is a de Polignac number, because none of the positive numbers 2^k-200122021121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200122021096 and 200122021105.

It is not an unprimeable number, because it can be changed into a prime (200122026121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441791 + ... + 771636.

It is an arithmetic number, because the mean of its divisors is an integer number (9683155440).

Almost surely, 2^200122021121 is an apocalyptic number.

It is an amenable number.

200122021121 is a deficient number, since it is larger than the sum of its proper divisors (32273709439).

200122021121 is a wasteful number, since it uses less digits than its factorization.

200122021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213525 (or 1213514 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200122021121 its reverse (121120221002), we get a palindrome (321242242123).

The spelling of 200122021121 in words is "two hundred billion, one hundred twenty-two million, twenty-one thousand, one hundred twenty-one".