2221112221858 has 16 divisors (see below), whose sum is σ = 3388888186560. Its totient is φ = 1091491169776.

The previous prime is 2221112221841. The next prime is 2221112221859. The reversal of 2221112221858 is 8581222111222.

It is not an unprimeable number, because it can be changed into a prime (2221112221859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1550566 + ... + 2616577.

It is an arithmetic number, because the mean of its divisors is an integer number (211805511660).

Almost surely, 2^{2221112221858} is an apocalyptic number.

2221112221858 is a deficient number, since it is larger than the sum of its proper divisors (1167775964702).

2221112221858 is a wasteful number, since it uses less digits than its factorization.

2221112221858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4171721.

The product of its digits is 20480, while the sum is 37.

The spelling of 2221112221858 in words is "two trillion, two hundred twenty-one billion, one hundred twelve million, two hundred twenty-one thousand, eight hundred fifty-eight".