2154435222 has 16 divisors (see below), whose sum is σ = 4335307200. Its totient is φ = 713738952.

The previous prime is 2154435191. The next prime is 2154435293. The reversal of 2154435222 is 2225344512.

It is a super-2 number, since 2×2154435222² = 9283182251588378568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2154435222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100472 + ... + 1102427.

It is an arithmetic number, because the mean of its divisors is an integer number (270956700).

Almost surely, 2^2154435222 is an apocalyptic number.

2154435222 is an abundant number, since it is smaller than the sum of its proper divisors (2180871978).

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

2154435222 is a wasteful number, since it uses less digits than its factorization.

2154435222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203067.

The product of its digits is 19200, while the sum is 30.

The square root of 2154435222 is about 46415.8940665803. The cubic root of 2154435222 is about 1291.5497713170.

Adding to 2154435222 its reverse (2225344512), we get a palindrome (4379779734).

The spelling of 2154435222 in words is "two billion, one hundred fifty-four million, four hundred thirty-five thousand, two hundred twenty-two".