2227144380820 has 24 divisors (see below), whose sum is σ = 4753675385928. Its totient is φ = 876253526400.

The previous prime is 2227144380787. The next prime is 2227144380887. The reversal of 2227144380820 is 280834417222.

It can be written as a sum of positive squares in 4 ways, for example, as 9088190224 + 2218056190596 = 95332^2 + 1489314^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912762871 + ... + 912765310.

It is an arithmetic number, because the mean of its divisors is an integer number (198069807747).

Almost surely, 2^{2227144380820} is an apocalyptic number.

2227144380820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2227144380820 is an abundant number, since it is smaller than the sum of its proper divisors (2526531005108).

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

2227144380820 is a wasteful number, since it uses less digits than its factorization.

2227144380820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825528251 (or 1825528249 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 43.

The spelling of 2227144380820 in words is "two trillion, two hundred twenty-seven billion, one hundred forty-four million, three hundred eighty thousand, eight hundred twenty".