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2122212012231 = 34117253756197
BaseRepresentation
bin11110111000011101101…
…100010111000011000111
321111212210121022022210110
4132320131230113003013
5234232242233342411
64302533012324103
7306216251316513
oct36703554270307
97455717268713
102122212012231
1174903039a493
122a3370613633
1312517bac77cc
1474a038bd143
153a30c2742a6
hex1ee1db170c7

2122212012231 has 8 divisors (see below), whose sum is σ = 2898631041264. Its totient is φ = 1380300495680.

The previous prime is 2122212012181. The next prime is 2122212012329. The reversal of 2122212012231 is 1322102122212.

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 2122212012231 - 233 = 2113622077639 is a prime.

It is a super-2 number, since 2×21222120122312 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2122212012198 and 2122212012207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122212012331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8626877976 + ... + 8626878221.

It is an arithmetic number, because the mean of its divisors is an integer number (362328880158).

Almost surely, 22122212012231 is an apocalyptic number.

2122212012231 is a deficient number, since it is larger than the sum of its proper divisors (776419029033).

2122212012231 is a wasteful number, since it uses less digits than its factorization.

2122212012231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17253756241.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2122212012231 its reverse (1322102122212), we get a palindrome (3444314134443).

The spelling of 2122212012231 in words is "two trillion, one hundred twenty-two billion, two hundred twelve million, twelve thousand, two hundred thirty-one".

Divisors: 1 3 41 123 17253756197 51761268591 707404004077 2122212012231