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2213412221 = 23959915461
BaseRepresentation
bin1000001111101101…
…1111110101111101
312201020220222202102
42003323133311331
514013113142341
61003345034445
7105564456566
oct20373376575
95636828672
102213412221
11a364603a9
12519325a25
13293749397
1416dd6d16d
15ce4bac9b
hex83edfd7d

2213412221 has 8 divisors (see below), whose sum is σ = 2226528000. Its totient is φ = 2200329040.

The previous prime is 2213412197. The next prime is 2213412301. The reversal of 2213412221 is 1222143122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2213412221 - 230 = 1139670397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213412193 and 2213412202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213412821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135431 + ... + 150891.

It is an arithmetic number, because the mean of its divisors is an integer number (278316000).

Almost surely, 22213412221 is an apocalyptic number.

It is an amenable number.

2213412221 is a deficient number, since it is larger than the sum of its proper divisors (13115779).

2213412221 is a wasteful number, since it uses less digits than its factorization.

2213412221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16299.

The product of its digits is 384, while the sum is 20.

The square root of 2213412221 is about 47046.9151060938. The cubic root of 2213412221 is about 1303.2290969955.

Adding to 2213412221 its reverse (1222143122), we get a palindrome (3435555343).

The spelling of 2213412221 in words is "two billion, two hundred thirteen million, four hundred twelve thousand, two hundred twenty-one".

Divisors: 1 239 599 15461 143161 3695179 9261139 2213412221