2216561022 has 48 divisors (see below), whose sum is σ = 5194884240. Its totient is φ = 678998016.

The previous prime is 2216560981. The next prime is 2216561041. The reversal of 2216561022 is 2201656122.

2216561022 is a `hidden beast` number, since 2 + 2 + 1 + 656 + 1 + 0 + 2 + 2 = 666.

It is a congruent number.

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, 32254 + ... + 73982.

It is an arithmetic number, because the mean of its divisors is an integer number (108226755).

Almost surely, 2^2216561022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216561022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2597442120).

2216561022 is an abundant number, since it is smaller than the sum of its proper divisors (2978323218).

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

2216561022 is a wasteful number, since it uses less digits than its factorization.

2216561022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41977 (or 41974 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2216561022 is about 47080.3676918522. The cubic root of 2216561022 is about 1303.8467955651.

The spelling of 2216561022 in words is "two billion, two hundred sixteen million, five hundred sixty-one thousand, twenty-two".