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1201122202222 = 28325728154381
BaseRepresentation
bin10001011110101000011…
…101100101001001101110
311020211022021022220000201
4101132220131211021232
5124134344240432342
62315442105144114
7152530633156435
oct21365035451156
94224267286021
101201122202222
11423436196248
1217495148b03a
138935ac402a7
14421c55a611c
152139d4a9db7
hex117a876526e

1201122202222 has 16 divisors (see below), whose sum is σ = 1830485300112. Its totient is φ = 591016744960.

The previous prime is 1201122202123. The next prime is 1201122202223. The reversal of 1201122202222 is 2222022211021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201122202222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201122202223) 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, 14034529 + ... + 14119852.

It is an arithmetic number, because the mean of its divisors is an integer number (114405331257).

Almost surely, 21201122202222 is an apocalyptic number.

1201122202222 is a deficient number, since it is larger than the sum of its proper divisors (629363097890).

1201122202222 is a wasteful number, since it uses less digits than its factorization.

1201122202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28154723.

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

Adding to 1201122202222 its reverse (2222022211021), we get a palindrome (3423144413243).

The spelling of 1201122202222 in words is "one trillion, two hundred one billion, one hundred twenty-two million, two hundred two thousand, two hundred twenty-two".

Divisors: 1 2 83 166 257 514 21331 42662 28154381 56308762 2336813623 4673627246 7235675917 14471351834 600561101111 1201122202222