200120020100122 has 4 divisors (see below), whose sum is σ = 300180030150186. Its totient is φ = 100060010050060.

The previous prime is 200120020100057. The next prime is 200120020100159. The reversal of 200120020100122 is 221001020021002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 185848028146881 + 14271991953241 = 13632609^2 + 3777829^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50030005025029 + ... + 50030005025032.

Almost surely, 2^{200120020100122} is an apocalyptic number.

200120020100122 is a deficient number, since it is larger than the sum of its proper divisors (100060010050064).

200120020100122 is a wasteful number, since it uses less digits than its factorization.

200120020100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100060010050063.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200120020100122 its reverse (221001020021002), we get a palindrome (421121040121124).

The spelling of 200120020100122 in words is "two hundred trillion, one hundred twenty billion, twenty million, one hundred thousand, one hundred twenty-two".