201119221 has 4 divisors (see below), whose sum is σ = 201246444. Its totient is φ = 200992000.

The previous prime is 201119203. The next prime is 201119273. The reversal of 201119221 is 122911102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122911102 = 2 ⋅61455551.

It can be written as a sum of positive squares in 2 ways, for example, as 150552900 + 50566321 = 12270^2 + 7111^2 .

It is a cyclic number.

It is not a de Polignac number, because 201119221 - 2⁵ = 201119189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201111221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61210 + ... + 64411.

It is an arithmetic number, because the mean of its divisors is an integer number (50311611).

Almost surely, 2^201119221 is an apocalyptic number.

It is an amenable number.

201119221 is a deficient number, since it is larger than the sum of its proper divisors (127223).

201119221 is a wasteful number, since it uses less digits than its factorization.

201119221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127222.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 201119221 is about 14181.6508559476. The cubic root of 201119221 is about 585.8923930826.

The spelling of 201119221 in words is "two hundred one million, one hundred nineteen thousand, two hundred twenty-one".