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2212102001 = 16651132851
BaseRepresentation
bin1000001111011001…
…1111111101110001
312201011110102110202
42003312133331301
514012244231001
61003301004545
7105550361654
oct20366377561
95634412422
102212102001
11a35745a7a
125189b3755
132933aabc5
1416db0b89b
15ce30c96b
hex83d9ff71

2212102001 has 4 divisors (see below), whose sum is σ = 2212251504. Its totient is φ = 2211952500.

The previous prime is 2212101971. The next prime is 2212102021. The reversal of 2212102001 is 1002012122.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2k-2212102001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212102021) 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, 49775 + ... + 83076.

It is an arithmetic number, because the mean of its divisors is an integer number (553062876).

Almost surely, 22212102001 is an apocalyptic number.

It is an amenable number.

2212102001 is a deficient number, since it is larger than the sum of its proper divisors (149503).

2212102001 is a wasteful number, since it uses less digits than its factorization.

2212102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149502.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2212102001 is about 47032.9884336515. The cubic root of 2212102001 is about 1302.9718992563.

Adding to 2212102001 its reverse (1002012122), we get a palindrome (3214114123).

The spelling of 2212102001 in words is "two billion, two hundred twelve million, one hundred two thousand, one".

Divisors: 1 16651 132851 2212102001