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2222020111 = 21123345197
BaseRepresentation
bin1000010001110001…
…0101011000001111
312201212010022120011
42010130111120033
514022314120421
61004253334051
7106030600513
oct20434253017
95655108504
102222020111
11a402aa663
12520197327
132954713cc
14171170143
15d011b4e1
hex8471560f

2222020111 has 8 divisors (see below), whose sum is σ = 2242182384. Its totient is φ = 2201949120.

The previous prime is 2222020109. The next prime is 2222020121. The reversal of 2222020111 is 1110202222.

It is a happy number.

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 2222020111 - 21 = 2222020109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222020091 and 2222020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222020121) 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, 26565 + ... + 71761.

It is an arithmetic number, because the mean of its divisors is an integer number (280272798).

Almost surely, 22222020111 is an apocalyptic number.

2222020111 is a deficient number, since it is larger than the sum of its proper divisors (20162273).

2222020111 is a wasteful number, since it uses less digits than its factorization.

2222020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45641.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2222020111 is about 47138.3083171214. The cubic root of 2222020111 is about 1304.9163172560.

Adding to 2222020111 its reverse (1110202222), we get a palindrome (3332222333).

The spelling of 2222020111 in words is "two billion, two hundred twenty-two million, twenty thousand, one hundred eleven".

Divisors: 1 211 233 45197 49163 9536567 10530901 2222020111