1020220432144 has 10 divisors (see below), whose sum is σ = 1976677087310. Its totient is φ = 510110216064.

The previous prime is 1020220432079. The next prime is 1020220432157. The reversal of 1020220432144 is 4412340220201.

It can be written as a sum of positive squares in only one way, i.e., 666528553744 + 353691878400 = 816412^2 + 594720^2 .

It is an unprimeable number.

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, 31881888489 + ... + 31881888520.

It is an arithmetic number, because the mean of its divisors is an integer number (197667708731).

Almost surely, 2^{1020220432144} is an apocalyptic number.

It is an amenable number.

1020220432144 is a deficient number, since it is larger than the sum of its proper divisors (956456655166).

1020220432144 is an equidigital number, since it uses as much as digits as its factorization.

1020220432144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63763777017 (or 63763777011 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1020220432144 its reverse (4412340220201), we get a palindrome (5432560652345).

The spelling of 1020220432144 in words is "one trillion, twenty billion, two hundred twenty million, four hundred thirty-two thousand, one hundred forty-four".