1220294444380 has 96 divisors (see below), whose sum is σ = 2961604078272. Its totient is φ = 417418752000.

The previous prime is 1220294444339. The next prime is 1220294444419. The reversal of 1220294444380 is 834444920221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7023922 + ... + 7195558.

It is an arithmetic number, because the mean of its divisors is an integer number (30850042482).

Almost surely, 2^{1220294444380} is an apocalyptic number.

1220294444380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220294444380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1480802039136).

1220294444380 is an abundant number, since it is smaller than the sum of its proper divisors (1741309633892).

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

1220294444380 is a wasteful number, since it uses less digits than its factorization.

1220294444380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173575 (or 173573 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 43.

The spelling of 1220294444380 in words is "one trillion, two hundred twenty billion, two hundred ninety-four million, four hundred forty-four thousand, three hundred eighty".