1224512212 has 48 divisors (see below), whose sum is σ = 2722108032. Its totient is φ = 468074880.

The previous prime is 1224512143. The next prime is 1224512243. The reversal of 1224512212 is 2122154221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 21183 + ... + 53830.

It is an arithmetic number, because the mean of its divisors is an integer number (56710584).

Almost surely, 2^1224512212 is an apocalyptic number.

It is an amenable number.

1224512212 is an abundant number, since it is smaller than the sum of its proper divisors (1497595820).

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

1224512212 is a wasteful number, since it uses less digits than its factorization.

1224512212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75088 (or 75086 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 1224512212 is about 34993.0309061676. The cubic root of 1224512212 is about 1069.8454407434.

Adding to 1224512212 its reverse (2122154221), we get a palindrome (3346666433).

It can be divided in two parts, 1224512 and 212, that multiplied together give a square (259596544 = 16112²).

The spelling of 1224512212 in words is "one billion, two hundred twenty-four million, five hundred twelve thousand, two hundred twelve".