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220211202101021 = 7924763112566473
BaseRepresentation
bin110010000100011111101010…
…011110100000111100011101
31001212200222121022002221102222
4302010133222132200330131
5212330420020214213041
62100203344001355125
764245506605514165
oct6204375236407435
91055628538087388
10220211202101021
116419105676790a
12208464a6038aa5
1395b4a9a62ab11
143c543c9a015a5
151a6d2eaa5a74b
hexc847ea7a0f1d

220211202101021 has 8 divisors (see below), whose sum is σ = 223007692970880. Its totient is φ = 217414936413792.

The previous prime is 220211202100999. The next prime is 220211202101029. The reversal of 220211202101021 is 120101202112022.

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 220211202101021 - 214 = 220211202084637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211202101029) 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, 54326960 + ... + 58239513.

It is an arithmetic number, because the mean of its divisors is an integer number (27875961621360).

Almost surely, 2220211202101021 is an apocalyptic number.

It is an amenable number.

220211202101021 is a deficient number, since it is larger than the sum of its proper divisors (2796490869859).

220211202101021 is a wasteful number, since it uses less digits than its factorization.

220211202101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112591315.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220211202101021 its reverse (120101202112022), we get a palindrome (340312404213043).

The spelling of 220211202101021 in words is "two hundred twenty trillion, two hundred eleven billion, two hundred two million, one hundred one thousand, twenty-one".

Divisors: 1 79 24763 1956277 112566473 8892751367 2787483570899 220211202101021