1220544052444 has 6 divisors (see below), whose sum is σ = 2135952091784. Its totient is φ = 610272026220.

The previous prime is 1220544052433. The next prime is 1220544052447. The reversal of 1220544052444 is 4442504450221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220544052447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152568006552 + ... + 152568006559.

Almost surely, 2^{1220544052444} is an apocalyptic number.

It is an amenable number.

1220544052444 is a deficient number, since it is larger than the sum of its proper divisors (915408039340).

1220544052444 is a wasteful number, since it uses less digits than its factorization.

1220544052444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305136013115 (or 305136013113 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 37.

The spelling of 1220544052444 in words is "one trillion, two hundred twenty billion, five hundred forty-four million, fifty-two thousand, four hundred forty-four".