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2111201221201 = 12721757764059
BaseRepresentation
bin11110101110001101011…
…001100001101001010001
321110211101020120012001021
4132232031121201221101
5234042220003034301
64253512241035441
7305346351201112
oct36561531415121
97424336505037
102111201221201
117443a0061196
122a11b9025b81
13124115892547
147427b400209
1539db57a28a1
hex1eb8d661a51

2111201221201 has 8 divisors (see below), whose sum is σ = 2127925437440. Its totient is φ = 2094478576848.

The previous prime is 2111201221163. The next prime is 2111201221229. The reversal of 2111201221201 is 1021221021112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2111201221201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111201231201) 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, 2381110 + ... + 3145168.

It is an arithmetic number, because the mean of its divisors is an integer number (265990679680).

Almost surely, 22111201221201 is an apocalyptic number.

It is an amenable number.

2111201221201 is a deficient number, since it is larger than the sum of its proper divisors (16724216239).

2111201221201 is a wasteful number, since it uses less digits than its factorization.

2111201221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785943.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2111201221201 its reverse (1021221021112), we get a palindrome (3132422242313).

The spelling of 2111201221201 in words is "two trillion, one hundred eleven billion, two hundred one million, two hundred twenty-one thousand, two hundred one".

Divisors: 1 127 21757 764059 2763139 97035493 16623631663 2111201221201