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2112212001 = 33122711957
BaseRepresentation
bin111110111100101…
…1100110000100001
312110012111111011010
41331321130300201
513311211241001
6545332011133
7103225335324
oct17571346041
95405444133
102112212001
1199431a159
124ab460aa9
132787a54b3
141607487bb
15c567a8d6
hex7de5cc21

2112212001 has 8 divisors (see below), whose sum is σ = 2907130624. Its totient is φ = 1362717360.

The previous prime is 2112211967. The next prime is 2112212029. The reversal of 2112212001 is 1002122112.

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

It is not a de Polignac number, because 2112212001 - 210 = 2112210977 is a prime.

It is a super-2 number, since 2×21122120012 = 8922879074336848002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112282001) 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, 11355886 + ... + 11356071.

It is an arithmetic number, because the mean of its divisors is an integer number (363391328).

Almost surely, 22112212001 is an apocalyptic number.

It is an amenable number.

2112212001 is a deficient number, since it is larger than the sum of its proper divisors (794918623).

2112212001 is a wasteful number, since it uses less digits than its factorization.

2112212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22711991.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2112212001 is about 45958.8076542462. The cubic root of 2112212001 is about 1283.0566598856.

Adding to 2112212001 its reverse (1002122112), we get a palindrome (3114334113).

The spelling of 2112212001 in words is "two billion, one hundred twelve million, two hundred twelve thousand, one".

Divisors: 1 3 31 93 22711957 68135871 704070667 2112212001