2221100022 has 16 divisors (see below), whose sum is σ = 4476111552. Its totient is φ = 734714760.

The previous prime is 2221099999. The next prime is 2221100023. The reversal of 2221100022 is 2200011222.

2221100022 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 is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2221099980 and 2221100007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221100023) 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, 1412128 + ... + 1413699.

It is an arithmetic number, because the mean of its divisors is an integer number (279756972).

Almost surely, 2^2221100022 is an apocalyptic number.

2221100022 is an abundant number, since it is smaller than the sum of its proper divisors (2255011530).

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

2221100022 is a wasteful number, since it uses less digits than its factorization.

2221100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825963.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2221100022 is about 47128.5478452286. The cubic root of 2221100022 is about 1304.7361801365.

Adding to 2221100022 its reverse (2200011222), we get a palindrome (4421111244).

The spelling of 2221100022 in words is "two billion, two hundred twenty-one million, one hundred thousand, twenty-two".