1224121345249 has 8 divisors (see below), whose sum is σ = 1358039089440. Its totient is φ = 1093975932000.

The previous prime is 1224121345247. The next prime is 1224121345253. The reversal of 1224121345249 is 9425431214221.

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

It is a cyclic number.

It is not a de Polignac number, because 1224121345249 - 2¹ = 1224121345247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1224121345247) 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 7 ways as a sum of consecutive naturals, for example, 943082052 + ... + 943083349.

It is an arithmetic number, because the mean of its divisors is an integer number (169754886180).

Almost surely, 2^{1224121345249} is an apocalyptic number.

It is an amenable number.

1224121345249 is a deficient number, since it is larger than the sum of its proper divisors (133917744191).

1224121345249 is a wasteful number, since it uses less digits than its factorization.

1224121345249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886165471.

The product of its digits is 138240, while the sum is 40.

The spelling of 1224121345249 in words is "one trillion, two hundred twenty-four billion, one hundred twenty-one million, three hundred forty-five thousand, two hundred forty-nine".