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222211102102001 = 1217182589237553
BaseRepresentation
bin110010100001100110001101…
…110011100101000111110001
31002010210011200202210022112122
4302201212031303211013301
5213111201314114231001
62104334212051204025
764543136155163015
oct6241461563450761
91063704622708478
10222211102102001
1164892221117981
1220b0a0005a6615
1396cb55624bc6c
143cc31090a0545
151aa5349d83b1b
hexca198dce51f1

222211102102001 has 4 divisors (see below), whose sum is σ = 222393691340772. Its totient is φ = 222028512863232.

The previous prime is 222211102101979. The next prime is 222211102102037. The reversal of 222211102102001 is 100201201112222.

222211102102001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93671039424400 + 128540062677601 = 9678380^2 + 11337551^2 .

It is a cyclic number.

It is not a de Polignac number, because 222211102102001 - 214 = 222211102085617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222211152102001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91294617560 + ... + 91294619993.

It is an arithmetic number, because the mean of its divisors is an integer number (55598422835193).

Almost surely, 2222211102102001 is an apocalyptic number.

It is an amenable number.

222211102102001 is a deficient number, since it is larger than the sum of its proper divisors (182589238771).

222211102102001 is a wasteful number, since it uses less digits than its factorization.

222211102102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182589238770.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222211102102001 its reverse (100201201112222), we get a palindrome (322412303214223).

The spelling of 222211102102001 in words is "two hundred twenty-two trillion, two hundred eleven billion, one hundred two million, one hundred two thousand, one".

Divisors: 1 1217 182589237553 222211102102001