1220433035444 has 48 divisors (see below), whose sum is σ = 2474566348800. Its totient is φ = 515836260576.

The previous prime is 1220433035429. The next prime is 1220433035453. The reversal of 1220433035444 is 4445303340221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1640777 + ... + 2265615.

It is an arithmetic number, because the mean of its divisors is an integer number (51553465600).

Almost surely, 2^{1220433035444} is an apocalyptic number.

1220433035444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1220433035444 is an abundant number, since it is smaller than the sum of its proper divisors (1254133313356).

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

1220433035444 is a wasteful number, since it uses less digits than its factorization.

1220433035444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625812 (or 625810 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 1220433035444 its reverse (4445303340221), we get a palindrome (5665736375665).

The spelling of 1220433035444 in words is "one trillion, two hundred twenty billion, four hundred thirty-three million, thirty-five thousand, four hundred forty-four".