225214311 has 16 divisors (see below), whose sum is σ = 346224384. Its totient is φ = 127553664.

The previous prime is 225214303. The next prime is 225214357. The reversal of 225214311 is 113412522.

It is not a de Polignac number, because 225214311 - 2³ = 225214303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225214111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45081 + ... + 49826.

It is an arithmetic number, because the mean of its divisors is an integer number (21639024).

Almost surely, 2^225214311 is an apocalyptic number.

225214311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

225214311 is a deficient number, since it is larger than the sum of its proper divisors (121010073).

225214311 is a wasteful number, since it uses less digits than its factorization.

225214311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95030.

The product of its digits is 480, while the sum is 21.

The square root of 225214311 is about 15007.1419997280. The cubic root of 225214311 is about 608.4132468400.

Adding to 225214311 its reverse (113412522), we get a palindrome (338626833).

The spelling of 225214311 in words is "two hundred twenty-five million, two hundred fourteen thousand, three hundred eleven".