200120121092 has 12 divisors (see below), whose sum is σ = 350230358940. Its totient is φ = 100054304256.

The previous prime is 200120121079. The next prime is 200120121109. The reversal of 200120121092 is 290121021002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 79227612676 + 120892508416 = 281474^2 + 347696^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1360373 + ... + 1500284.

It is an arithmetic number, because the mean of its divisors is an integer number (29185863245).

Almost surely, 2^200120121092 is an apocalyptic number.

It is an amenable number.

200120121092 is a deficient number, since it is larger than the sum of its proper divisors (150110237848).

200120121092 is a wasteful number, since it uses less digits than its factorization.

200120121092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878150 (or 2878148 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 200120121092 its reverse (290121021002), we get a palindrome (490241142094).

The spelling of 200120121092 in words is "two hundred billion, one hundred twenty million, one hundred twenty-one thousand, ninety-two".