1872784220222 has 32 divisors (see below), whose sum is σ = 2988406673280. Its totient is φ = 877706992800.

The previous prime is 1872784220221. The next prime is 1872784220227. The reversal of 1872784220222 is 2220224872781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872784220221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5305853 + ... + 5647799.

It is an arithmetic number, because the mean of its divisors is an integer number (93387708540).

Almost surely, 2^{1872784220222} is an apocalyptic number.

1872784220222 is a deficient number, since it is larger than the sum of its proper divisors (1115622453058).

1872784220222 is a wasteful number, since it uses less digits than its factorization.

1872784220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343496.

The product of its (nonzero) digits is 802816, while the sum is 47.

The spelling of 1872784220222 in words is "one trillion, eight hundred seventy-two billion, seven hundred eighty-four million, two hundred twenty thousand, two hundred twenty-two".