200200121012 has 6 divisors (see below), whose sum is σ = 350350211778. Its totient is φ = 100100060504.

The previous prime is 200200120943. The next prime is 200200121029. The reversal of 200200121012 is 210121002002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 171732332836 + 28467788176 = 414406^2 + 168724^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200200120984 and 200200121002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25025015123 + ... + 25025015130.

It is an arithmetic number, because the mean of its divisors is an integer number (58391701963).

Almost surely, 2^200200121012 is an apocalyptic number.

It is an amenable number.

200200121012 is a deficient number, since it is larger than the sum of its proper divisors (150150090766).

200200121012 is a wasteful number, since it uses less digits than its factorization.

200200121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50050030257 (or 50050030255 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200200121012 its reverse (210121002002), we get a palindrome (410321123014).

The spelling of 200200121012 in words is "two hundred billion, two hundred million, one hundred twenty-one thousand, twelve".