2122221084 has 12 divisors (see below), whose sum is σ = 4951849224. Its totient is φ = 707407024.

The previous prime is 2122221083. The next prime is 2122221133. The reversal of 2122221084 is 4801222212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122221083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88425867 + ... + 88425890.

It is an arithmetic number, because the mean of its divisors is an integer number (412654102).

Almost surely, 2^2122221084 is an apocalyptic number.

It is an amenable number.

2122221084 is an abundant number, since it is smaller than the sum of its proper divisors (2829628140).

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

2122221084 is a wasteful number, since it uses less digits than its factorization.

2122221084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176851764 (or 176851762 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 2122221084 is about 46067.5708497854. The cubic root of 2122221084 is about 1285.0801292470.

Adding to 2122221084 its reverse (4801222212), we get a palindrome (6923443296).

The spelling of 2122221084 in words is "two billion, one hundred twenty-two million, two hundred twenty-one thousand, eighty-four".