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2320122221 = 89246710567
BaseRepresentation
bin1000101001001010…
…0100000101101101
312222200201102100122
42022102210011231
514222422402341
61022120134325
7111331466504
oct21222440555
95880642318
102320122221
11a9071518a
125490073a5
132ac89c0b1
141801c983b
15d8a4894b
hex8a4a416d

2320122221 has 8 divisors (see below), whose sum is σ = 2347364160. Its totient is φ = 2292906528.

The previous prime is 2320122187. The next prime is 2320122229. The reversal of 2320122221 is 1222210232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2320122221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2320122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320122229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214280 + ... + 224846.

It is an arithmetic number, because the mean of its divisors is an integer number (293420520).

Almost surely, 22320122221 is an apocalyptic number.

It is an amenable number.

2320122221 is a deficient number, since it is larger than the sum of its proper divisors (27241939).

2320122221 is a wasteful number, since it uses less digits than its factorization.

2320122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13123.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2320122221 is about 48167.6470361590. The cubic root of 2320122221 is about 1323.8444361438.

Adding to 2320122221 its reverse (1222210232), we get a palindrome (3542332453).

The spelling of 2320122221 in words is "two billion, three hundred twenty million, one hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 89 2467 10567 219563 940463 26068789 2320122221