2151144222 has 16 divisors (see below), whose sum is σ = 4393827072. Its totient is φ = 701791640.

The previous prime is 2151144211. The next prime is 2151144239. The reversal of 2151144222 is 2224411512.

2151144222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2151144192 and 2151144201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3813804 + ... + 3814367.

It is an arithmetic number, because the mean of its divisors is an integer number (274614192).

Almost surely, 2^2151144222 is an apocalyptic number.

2151144222 is an abundant number, since it is smaller than the sum of its proper divisors (2242682850).

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

2151144222 is a wasteful number, since it uses less digits than its factorization.

2151144222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7628223.

The product of its digits is 1280, while the sum is 24.

The square root of 2151144222 is about 46380.4292994362. The cubic root of 2151144222 is about 1290.8918020627.

Adding to 2151144222 its reverse (2224411512), we get a palindrome (4375555734).

The spelling of 2151144222 in words is "two billion, one hundred fifty-one million, one hundred forty-four thousand, two hundred twenty-two".