1220443442130 has 128 divisors (see below), whose sum is σ = 3250849075200. Its totient is φ = 290729779200.

The previous prime is 1220443442129. The next prime is 1220443442149. The reversal of 1220443442130 is 312443440221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52343175 + ... + 52366485.

It is an arithmetic number, because the mean of its divisors is an integer number (25397258400).

Almost surely, 2^{1220443442130} is an apocalyptic number.

1220443442130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220443442130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1625424537600).

1220443442130 is an abundant number, since it is smaller than the sum of its proper divisors (2030405633070).

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

1220443442130 is a wasteful number, since it uses less digits than its factorization.

1220443442130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26080.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1220443442130 its reverse (312443440221), we get a palindrome (1532886882351).

The spelling of 1220443442130 in words is "one trillion, two hundred twenty billion, four hundred forty-three million, four hundred forty-two thousand, one hundred thirty".