1622214225 has 18 divisors (see below), whose sum is σ = 2905566326. Its totient is φ = 865180800.

The previous prime is 1622214197. The next prime is 1622214233. The reversal of 1622214225 is 5224122261.

1622214225 is a `hidden beast` number, since 1 + 622 + 2 + 14 + 2 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 242611776 + 1379602449 = 15576^2 + 37143^2 .

It is not a de Polignac number, because 1622214225 - 2⁶ = 1622214161 is a prime.

It is a Duffinian 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 17 ways as a sum of consecutive naturals, for example, 3604696 + ... + 3605145.

Almost surely, 2^1622214225 is an apocalyptic number.

1622214225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1622214225 is a deficient number, since it is larger than the sum of its proper divisors (1283352101).

1622214225 is a wasteful number, since it uses less digits than its factorization.

1622214225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7209857 (or 7209849 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1622214225 is about 40276.7206336365. The cubic root of 1622214225 is about 1174.9951350334.

Adding to 1622214225 its reverse (5224122261), we get a palindrome (6846336486).

The spelling of 1622214225 in words is "one billion, six hundred twenty-two million, two hundred fourteen thousand, two hundred twenty-five".