Search a number
-
+
2112220110001 = 4349121397907
BaseRepresentation
bin11110101111001010001…
…000010001110010110001
321110221000020210002201111
4132233022020101302301
5234101311322010001
64254201315233321
7305413532462311
oct36571210216261
97427006702644
102112220110001
11744873206451
122a14422a8841
131242489b4121
1474336867441
1539e24e65851
hex1ebca211cb1

2112220110001 has 4 divisors (see below), whose sum is σ = 2161341507952. Its totient is φ = 2063098712052.

The previous prime is 2112220109953. The next prime is 2112220110067. The reversal of 2112220110001 is 1000110222112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2112220110001 - 211 = 2112220107953 is a prime.

It is a super-2 number, since 2×21122201100012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112220110401) 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, 24560698911 + ... + 24560698996.

It is an arithmetic number, because the mean of its divisors is an integer number (540335376988).

Almost surely, 22112220110001 is an apocalyptic number.

It is an amenable number.

2112220110001 is a deficient number, since it is larger than the sum of its proper divisors (49121397951).

2112220110001 is an equidigital number, since it uses as much as digits as its factorization.

2112220110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49121397950.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2112220110001 its reverse (1000110222112), we get a palindrome (3112330332113).

The spelling of 2112220110001 in words is "two trillion, one hundred twelve billion, two hundred twenty million, one hundred ten thousand, one".

Divisors: 1 43 49121397907 2112220110001