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1212002211201 = 32391690379653
BaseRepresentation
bin10001101000110000111…
…101100001010110000001
311021212101111222121112020
4101220300331201112001
5124324140031224301
62324441445352053
7153364354546305
oct21506075412601
94255344877466
101212002211201
11428009719001
12176a89108629
138a3a3044b22
144293855dd05
15217d8746436
hex11a30f61581

1212002211201 has 8 divisors (see below), whose sum is σ = 1622764467840. Its totient is φ = 804620714352.

The previous prime is 1212002211187. The next prime is 1212002211221. The reversal of 1212002211201 is 1021122002121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1212002211201 - 27 = 1212002211073 is a prime.

It is a super-2 number, since 2×12120022112012 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212002211221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845189110 + ... + 845190543.

It is an arithmetic number, because the mean of its divisors is an integer number (202845558480).

Almost surely, 21212002211201 is an apocalyptic number.

It is an amenable number.

1212002211201 is a deficient number, since it is larger than the sum of its proper divisors (410762256639).

1212002211201 is a wasteful number, since it uses less digits than its factorization.

1212002211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690379895.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212002211201 its reverse (1021122002121), we get a palindrome (2233124213322).

The spelling of 1212002211201 in words is "one trillion, two hundred twelve billion, two million, two hundred eleven thousand, two hundred one".

Divisors: 1 3 239 717 1690379653 5071138959 404000737067 1212002211201