1224201132 has 72 divisors (see below), whose sum is σ = 3858097152. Its totient is φ = 317973600.

The previous prime is 1224201109. The next prime is 1224201149. The reversal of 1224201132 is 2311024221.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218044 + ... + 223587.

Almost surely, 2^1224201132 is an apocalyptic number.

1224201132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1224201132 is an abundant number, since it is smaller than the sum of its proper divisors (2633896020).

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

1224201132 is a wasteful number, since it uses less digits than its factorization.

1224201132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441659 (or 441654 counting only the distinct ones).

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

The square root of 1224201132 is about 34988.5857387806. The cubic root of 1224201132 is about 1069.7548371264.

Adding to 1224201132 its reverse (2311024221), we get a palindrome (3535225353).

Subtracting 1224201132 from its reverse (2311024221), we obtain a square (1086823089 = 32967²).

The spelling of 1224201132 in words is "one billion, two hundred twenty-four million, two hundred one thousand, one hundred thirty-two".