1224121345250 has 64 divisors (see below), whose sum is σ = 2327237332992. Its totient is φ = 482083056000.

The previous prime is 1224121345247. The next prime is 1224121345253. The reversal of 1224121345250 is 525431214221.

It is an interprime number because it is at equal distance from previous prime (1224121345247) and next prime (1224121345253).

It is not an unprimeable number, because it can be changed into a prime (1224121345253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4012094 + ... + 4306406.

It is an arithmetic number, because the mean of its divisors is an integer number (36363083328).

Almost surely, 2^{1224121345250} is an apocalyptic number.

1224121345250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1224121345250 is a deficient number, since it is larger than the sum of its proper divisors (1103115987742).

1224121345250 is a wasteful number, since it uses less digits than its factorization.

1224121345250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294588 (or 294578 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 1224121345250 its reverse (525431214221), we get a palindrome (1749552559471).

The spelling of 1224121345250 in words is "one trillion, two hundred twenty-four billion, one hundred twenty-one million, three hundred forty-five thousand, two hundred fifty".