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1212201202201 = 111011091090191
BaseRepresentation
bin10001101000111100110…
…100100111001000011001
311021212220101102101212021
4101220330310213020121
5124330042001432301
62324513314414441
7153402322132063
oct21507464471031
94255811371767
101212201202201
11428100a81980
12176b23891421
138a405337a92
1442956b5c733
15217eae518a1
hex11a3cd27219

1212201202201 has 8 divisors (see below), whose sum is σ = 1335494395008. Its totient is φ = 1091090190000.

The previous prime is 1212201202189. The next prime is 1212201202237. The reversal of 1212201202201 is 1022021022121.

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 1212201202201 - 229 = 1211664331289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212201202291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545543985 + ... + 545546206.

It is an arithmetic number, because the mean of its divisors is an integer number (166936799376).

Almost surely, 21212201202201 is an apocalyptic number.

1212201202201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212201202201 is a deficient number, since it is larger than the sum of its proper divisors (123293192807).

1212201202201 is a wasteful number, since it uses less digits than its factorization.

1212201202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091090303.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212201202201 its reverse (1022021022121), we get a palindrome (2234222224322).

The spelling of 1212201202201 in words is "one trillion, two hundred twelve billion, two hundred one million, two hundred two thousand, two hundred one".

Divisors: 1 11 101 1111 1091090191 12001992101 110200109291 1212201202201