201200122 has 4 divisors (see below), whose sum is σ = 301800186. Its totient is φ = 100600060.

The previous prime is 201200081. The next prime is 201200183. The reversal of 201200122 is 221002102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221002102 = 2 ⋅110501051.

It can be written as a sum of positive squares in only one way, i.e., 170851041 + 30349081 = 13071^2 + 5509^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201200099 and 201200108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50300029 + ... + 50300032.

Almost surely, 2^201200122 is an apocalyptic number.

201200122 is a deficient number, since it is larger than the sum of its proper divisors (100600064).

201200122 is a wasteful number, since it uses less digits than its factorization.

201200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100600063.

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

The square root of 201200122 is about 14184.5028816663. The cubic root of 201200122 is about 585.9709417268.

Adding to 201200122 its reverse (221002102), we get a palindrome (422202224).

The spelling of 201200122 in words is "two hundred one million, two hundred thousand, one hundred twenty-two".