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2212011021001 = 171097118612849
BaseRepresentation
bin100000001100000110001…
…000011001001011001001
321211110120211222121210011
4200030012020121023021
5242220144310133001
64412103412551521
7315545460310015
oct40140610311311
97743524877704
102212011021001
11783121610921
122b88520225a1
131307900a6562
14790c1c1b545
153c815b4cd51
hex203062192c9

2212011021001 has 8 divisors (see below), whose sum is σ = 2344264367400. Its totient is φ = 2079994902528.

The previous prime is 2212011020993. The next prime is 2212011021049. The reversal of 2212011021001 is 1001201102122.

It can be written as a sum of positive squares in 4 ways, for example, as 820743590601 + 1391267430400 = 905949^2 + 1179520^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2212011021001 - 23 = 2212011020993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212011021601) 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, 59287776 + ... + 59325073.

It is an arithmetic number, because the mean of its divisors is an integer number (293033045925).

Almost surely, 22212011021001 is an apocalyptic number.

It is an amenable number.

2212011021001 is a deficient number, since it is larger than the sum of its proper divisors (132253346399).

2212011021001 is a wasteful number, since it uses less digits than its factorization.

2212011021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118613963.

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

Adding to 2212011021001 its reverse (1001201102122), we get a palindrome (3213212123123).

The spelling of 2212011021001 in words is "two trillion, two hundred twelve billion, eleven million, twenty-one thousand, one".

Divisors: 1 17 1097 18649 118612849 2016418433 130118295353 2212011021001