1220432512044 has 48 divisors (see below), whose sum is σ = 2850477291648. Its totient is φ = 406410845568.

The previous prime is 1220432512031. The next prime is 1220432512097. The reversal of 1220432512044 is 4402152340221.

It is a happy number.

It is a super-3 number, since 3×1220432512044³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 54758527 + ... + 54780809.

It is an arithmetic number, because the mean of its divisors is an integer number (59384943576).

Almost surely, 2^{1220432512044} is an apocalyptic number.

It is an amenable number.

1220432512044 is an abundant number, since it is smaller than the sum of its proper divisors (1630044779604).

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

1220432512044 is a wasteful number, since it uses less digits than its factorization.

1220432512044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26574 (or 26572 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 1220432512044 its reverse (4402152340221), we get a palindrome (5622584852265).

The spelling of 1220432512044 in words is "one trillion, two hundred twenty billion, four hundred thirty-two million, five hundred twelve thousand, forty-four".