1201228252 has 24 divisors (see below), whose sum is σ = 2447788896. Its totient is φ = 505098048.

The previous prime is 1201228247. The next prime is 1201228253. The reversal of 1201228252 is 2528221021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201228253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403243 + ... + 406210.

It is an arithmetic number, because the mean of its divisors is an integer number (101991204).

Almost surely, 2^1201228252 is an apocalyptic number.

It is an amenable number.

1201228252 is an abundant number, since it is smaller than the sum of its proper divisors (1246560644).

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

1201228252 is a wasteful number, since it uses less digits than its factorization.

1201228252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809517 (or 809515 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 1201228252 is about 34658.7399078501. The cubic root of 1201228252 is about 1063.0210045860.

Adding to 1201228252 its reverse (2528221021), we get a palindrome (3729449273).

The spelling of 1201228252 in words is "one billion, two hundred one million, two hundred twenty-eight thousand, two hundred fifty-two".