2221885170 has 48 divisors (see below), whose sum is σ = 5976111960. Its totient is φ = 572070912.

The previous prime is 2221885157. The next prime is 2221885217. The reversal of 2221885170 is 715881222.

2221885170 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1346376249 + 875508921 = 36693^2 + 29589^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 423039 + ... + 428258.

Almost surely, 2^2221885170 is an apocalyptic number.

2221885170 is an abundant number, since it is smaller than the sum of its proper divisors (3754226790).

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

2221885170 is a wasteful number, since it uses less digits than its factorization.

2221885170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851339 (or 851336 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 2221885170 is about 47136.8769648563. The cubic root of 2221885170 is about 1304.8899013118.

The spelling of 2221885170 in words is "two billion, two hundred twenty-one million, eight hundred eighty-five thousand, one hundred seventy".