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335225221 = 2999111779
BaseRepresentation
bin10011111110110…
…010000110000101
3212100210012112221
4103332302012011
51141304201341
653133012341
711210240002
oct2376620605
9770705487
10335225221
11162253741
12943240b1
13545b2226
14327428a9
151e66aed1
hex13fb2185

335225221 has 4 divisors (see below), whose sum is σ = 335340000. Its totient is φ = 335110444.

The previous prime is 335225167. The next prime is 335225237. The reversal of 335225221 is 122522533.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122522533 = 717503219.

It is a cyclic number.

It is not a de Polignac number, because 335225221 - 29 = 335224709 is a prime.

It is a super-2 number, since 2×3352252212 = 224751897588997682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (335222221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52891 + ... + 58888.

It is an arithmetic number, because the mean of its divisors is an integer number (83835000).

Almost surely, 2335225221 is an apocalyptic number.

It is an amenable number.

335225221 is a deficient number, since it is larger than the sum of its proper divisors (114779).

335225221 is a wasteful number, since it uses less digits than its factorization.

335225221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114778.

The product of its digits is 3600, while the sum is 25.

The square root of 335225221 is about 18309.1567528382. The cubic root of 335225221 is about 694.6705620841.

Adding to 335225221 its reverse (122522533), we get a palindrome (457747754).

The spelling of 335225221 in words is "three hundred thirty-five million, two hundred twenty-five thousand, two hundred twenty-one".

Divisors: 1 2999 111779 335225221