1201224231 has 12 divisors (see below), whose sum is σ = 1735587360. Its totient is φ = 800592000.

The previous prime is 1201224217. The next prime is 1201224257. The reversal of 1201224231 is 1324221021.

It is a happy number.

1201224231 is a `hidden beast` number, since 120 + 122 + 423 + 1 = 666.

It is not a de Polignac number, because 1201224231 - 2⁷ = 1201224103 is a prime.

It is a super-2 number, since 2×1201224231² = 2885879306283082722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201220231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19330 + ... + 52688.

It is an arithmetic number, because the mean of its divisors is an integer number (144632280).

Almost surely, 2^1201224231 is an apocalyptic number.

1201224231 is a deficient number, since it is larger than the sum of its proper divisors (534363129).

1201224231 is a wasteful number, since it uses less digits than its factorization.

1201224231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37366 (or 37363 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1201224231 is about 34658.6818993452. The cubic root of 1201224231 is about 1063.0198184633.

Adding to 1201224231 its reverse (1324221021), we get a palindrome (2525445252).

The spelling of 1201224231 in words is "one billion, two hundred one million, two hundred twenty-four thousand, two hundred thirty-one".