2221112221860 has 96 divisors (see below), whose sum is σ = 7204923032832. Its totient is φ = 500728227840.

The previous prime is 2221112221859. The next prime is 2221112221877. The reversal of 2221112221860 is 681222111222.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 36191001 + ... + 36252320.

It is an arithmetic number, because the mean of its divisors is an integer number (75051281592).

Almost surely, 2^{2221112221860} is an apocalyptic number.

2221112221860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221112221860 is an abundant number, since it is smaller than the sum of its proper divisors (4983810810972).

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

2221112221860 is a wasteful number, since it uses less digits than its factorization.

2221112221860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72443413 (or 72443411 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The spelling of 2221112221860 in words is "two trillion, two hundred twenty-one billion, one hundred twelve million, two hundred twenty-one thousand, eight hundred sixty".