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2222220111201 = 33197417789079
BaseRepresentation
bin100000010101100110101…
…000111110110101100001
321212102221100012010202000
4200111212220332311201
5242402101322024301
64420512425114213
7316356454166256
oct40254650766541
97772840163660
102222220111201
11787490357452
122ba821028969
131317291b172c
14797ada4b42d
153cc1205d786
hex20566a3ed61

2222220111201 has 16 divisors (see below), whose sum is σ = 3308889513600. Its totient is φ = 1473959867184.

The previous prime is 2222220111193. The next prime is 2222220111203. The reversal of 2222220111201 is 1021110222222.

It is a happy number.

It is not a de Polignac number, because 2222220111201 - 23 = 2222220111193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2222220111203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208889221 + ... + 208899858.

It is an arithmetic number, because the mean of its divisors is an integer number (206805594600).

Almost surely, 22222220111201 is an apocalyptic number.

It is an amenable number.

2222220111201 is a deficient number, since it is larger than the sum of its proper divisors (1086669402399).

2222220111201 is a wasteful number, since it uses less digits than its factorization.

2222220111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417789285 (or 417789279 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2222220111201 its reverse (1021110222222), we get a palindrome (3243330333423).

The spelling of 2222220111201 in words is "two trillion, two hundred twenty-two billion, two hundred twenty million, one hundred eleven thousand, two hundred one".

Divisors: 1 3 9 27 197 591 1773 5319 417789079 1253367237 3760101711 11280305133 82304448563 246913345689 740740037067 2222220111201