1201221324 has 18 divisors (see below), whose sum is σ = 3036420660. Its totient is φ = 400407096.

The previous prime is 1201221313. The next prime is 1201221331. The reversal of 1201221324 is 4231221021.

It is a happy number.

1201221324 is a `hidden beast` number, since 120 + 1 + 221 + 324 = 666.

1201221324 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1201221297 and 1201221306.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16683594 + ... + 16683665.

Almost surely, 2^1201221324 is an apocalyptic number.

It is an amenable number.

1201221324 is an abundant number, since it is smaller than the sum of its proper divisors (1835199336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201221324 is a wasteful number, since it uses less digits than its factorization.

1201221324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33367269 (or 33367264 counting only the distinct ones).

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

The square root of 1201221324 is about 34658.6399617758. The cubic root of 1201221324 is about 1063.0189609489.

Adding to 1201221324 its reverse (4231221021), we get a palindrome (5432442345).

The spelling of 1201221324 in words is "one billion, two hundred one million, two hundred twenty-one thousand, three hundred twenty-four".