1220220350144 has 28 divisors (see below), whose sum is σ = 2457514687704. Its totient is φ = 601004050944.

The previous prime is 1220220350081. The next prime is 1220220350161. The reversal of 1220220350144 is 4410530220221.

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 in 3 ways as a sum of consecutive naturals, for example, 142278869 + ... + 142287444.

Almost surely, 2^{1220220350144} is an apocalyptic number.

It is an amenable number.

1220220350144 is an abundant number, since it is smaller than the sum of its proper divisors (1237294337560).

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

1220220350144 is an equidigital number, since it uses as much as digits as its factorization.

1220220350144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284566392 (or 284566382 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 1220220350144 its reverse (4410530220221), we get a palindrome (5630750570365).

The spelling of 1220220350144 in words is "one trillion, two hundred twenty billion, two hundred twenty million, three hundred fifty thousand, one hundred forty-four".