1887220522222 has 64 divisors (see below), whose sum is σ = 3426955259904. Its totient is φ = 762347013120.

The previous prime is 1887220522217. The next prime is 1887220522279. The reversal of 1887220522222 is 2222250227881.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 6444448 + ... + 6730924.

It is an arithmetic number, because the mean of its divisors is an integer number (53546175936).

Almost surely, 2^{1887220522222} is an apocalyptic number.

1887220522222 is a deficient number, since it is larger than the sum of its proper divisors (1539734737682).

1887220522222 is a wasteful number, since it uses less digits than its factorization.

1887220522222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286913.

The product of its (nonzero) digits is 286720, while the sum is 43.

The spelling of 1887220522222 in words is "one trillion, eight hundred eighty-seven billion, two hundred twenty million, five hundred twenty-two thousand, two hundred twenty-two".