201002122 has 4 divisors (see below), whose sum is σ = 301503186. Its totient is φ = 100501060.

The previous prime is 201002111. The next prime is 201002141. The reversal of 201002122 is 221200102.

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., 170851041 + 30151081 = 13071^2 + 5491^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201002099 and 201002108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50250529 + ... + 50250532.

Almost surely, 2^201002122 is an apocalyptic number.

201002122 is a deficient number, since it is larger than the sum of its proper divisors (100501064).

201002122 is a wasteful number, since it uses less digits than its factorization.

201002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100501063.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 201002122 is about 14177.5217157302. The cubic root of 201002122 is about 585.7786616474.

Adding to 201002122 its reverse (221200102), we get a palindrome (422202224).

It can be divided in two parts, 20100 and 2122, that added together give a palindrome (22222).

The spelling of 201002122 in words is "two hundred one million, two thousand, one hundred twenty-two".