1212225562 has 8 divisors (see below), whose sum is σ = 1925299476. Its totient is φ = 570459072.

The previous prime is 1212225559. The next prime is 1212225583. The reversal of 1212225562 is 2655222121.

It can be written as a sum of positive squares in 2 ways, for example, as 1169571601 + 42653961 = 34199^2 + 6531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1212225562.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17826813 + ... + 17826880.

Almost surely, 2^1212225562 is an apocalyptic number.

1212225562 is a deficient number, since it is larger than the sum of its proper divisors (713073914).

1212225562 is a wasteful number, since it uses less digits than its factorization.

1212225562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35653712.

The product of its digits is 4800, while the sum is 28.

The square root of 1212225562 is about 34817.0297699272. The cubic root of 1212225562 is about 1066.2551599946.

Adding to 1212225562 its reverse (2655222121), we get a palindrome (3867447683).

The spelling of 1212225562 in words is "one billion, two hundred twelve million, two hundred twenty-five thousand, five hundred sixty-two".