2155222314 has 48 divisors (see below), whose sum is σ = 5568780672. Its totient is φ = 589004064.

The previous prime is 2155222313. The next prime is 2155222343. The reversal of 2155222314 is 4132225512.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2155222313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 368949 + ... + 374744.

It is an arithmetic number, because the mean of its divisors is an integer number (116016264).

Almost surely, 2^2155222314 is an apocalyptic number.

2155222314 is an abundant number, since it is smaller than the sum of its proper divisors (3413558358).

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

2155222314 is a wasteful number, since it uses less digits than its factorization.

2155222314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743731 (or 743728 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 2155222314 is about 46424.3719828282. The cubic root of 2155222314 is about 1291.7070352272.

Adding to 2155222314 its reverse (4132225512), we get a palindrome (6287447826).

The spelling of 2155222314 in words is "two billion, one hundred fifty-five million, two hundred twenty-two thousand, three hundred fourteen".