2152221104 has 20 divisors (see below), whose sum is σ = 4549013160. Its totient is φ = 978282240.

The previous prime is 2152221103. The next prime is 2152221119. The reversal of 2152221104 is 4011222512.

It is not an unprimeable number, because it can be changed into a prime (2152221103) 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, 6114089 + ... + 6114440.

It is an arithmetic number, because the mean of its divisors is an integer number (227450658).

Almost surely, 2^2152221104 is an apocalyptic number.

It is an amenable number.

2152221104 is an abundant number, since it is smaller than the sum of its proper divisors (2396792056).

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

2152221104 is a wasteful number, since it uses less digits than its factorization.

2152221104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12228548 (or 12228542 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2152221104 is about 46392.0370753430. The cubic root of 2152221104 is about 1291.1071767803.

Adding to 2152221104 its reverse (4011222512), we get a palindrome (6163443616).

The spelling of 2152221104 in words is "two billion, one hundred fifty-two million, two hundred twenty-one thousand, one hundred four".