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222220122102001 = 1744412943429833
BaseRepresentation
bin110010100001101110100111…
…011100001001100011110001
31002010211000222101111210101201
4302201232213130021203301
5213111323302224231001
62104342303105131201
764543605533003062
oct6241564734114361
91063730871453351
10222220122102001
116489602a729431
1220b0b8b9329b01
1396cc362bb267a
143cc3723000569
151aa56c6bb1501
hexca1ba77098f1

222220122102001 has 8 divisors (see below), whose sum is σ = 235344875807304. Its totient is φ = 209101255265280.

The previous prime is 222220122101993. The next prime is 222220122102073. The reversal of 222220122102001 is 100201221022222.

222220122102001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 70651152619776 + 151568969482225 = 8405424^2 + 12311335^2 .

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 222220122102001 - 23 = 222220122101993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222220122102001.

It is not an unprimeable number, because it can be changed into a prime (222220122102091) 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, 1471639420 + ... + 1471790413.

It is an arithmetic number, because the mean of its divisors is an integer number (29418109475913).

Almost surely, 2222220122102001 is an apocalyptic number.

It is an amenable number.

222220122102001 is a deficient number, since it is larger than the sum of its proper divisors (13124753705303).

222220122102001 is a wasteful number, since it uses less digits than its factorization.

222220122102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943434291.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222220122102001 its reverse (100201221022222), we get a palindrome (322421343124223).

The spelling of 222220122102001 in words is "two hundred twenty-two trillion, two hundred twenty billion, one hundred twenty-two million, one hundred two thousand, one".

Divisors: 1 17 4441 75497 2943429833 50038307161 13071771888353 222220122102001