1228210152 has 64 divisors (see below), whose sum is σ = 3501247680. Its totient is φ = 355679232.

The previous prime is 1228210121. The next prime is 1228210163. The reversal of 1228210152 is 2510128221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110478 + ... + 121085.

It is an arithmetic number, because the mean of its divisors is an integer number (54706995).

Almost surely, 2^1228210152 is an apocalyptic number.

1228210152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1228210152 is an abundant number, since it is smaller than the sum of its proper divisors (2273037528).

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

1228210152 is a wasteful number, since it uses less digits than its factorization.

1228210152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231602 (or 231598 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 1228210152 is about 35045.8293096340. The cubic root of 1228210152 is about 1070.9213108935.

Adding to 1228210152 its reverse (2510128221), we get a palindrome (3738338373).

The spelling of 1228210152 in words is "one billion, two hundred twenty-eight million, two hundred ten thousand, one hundred fifty-two".