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212211222200231 = 1957430719447807
BaseRepresentation
bin110000010000000101000110…
…100001000011111110100111
31000211101012020221112200111212
4300100011012201003332213
5210303332040340401411
62031200253432222035
762461516625366132
oct6020050641037647
91024335227480455
10212211222200231
11616873016624a1
121b973b58b3a91b
139154580c532a7
143a59113cb5219
15198017a76568b
hexc10146843fa7

212211222200231 has 8 divisors (see below), whose sum is σ = 223380634337280. Its totient is φ = 201041850107448.

The previous prime is 212211222200221. The next prime is 212211222200261. The reversal of 212211222200231 is 132002222112212.

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 212211222200231 - 218 = 212211221938087 is a prime.

It is a super-2 number, since 2×2122112222002312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212211222200197 and 212211222200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212211222200221) 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, 1187930 + ... + 20635736.

It is an arithmetic number, because the mean of its divisors is an integer number (27922579292160).

Almost surely, 2212211222200231 is an apocalyptic number.

212211222200231 is a deficient number, since it is larger than the sum of its proper divisors (11169412137049).

212211222200231 is a wasteful number, since it uses less digits than its factorization.

212211222200231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20022133.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 212211222200231 its reverse (132002222112212), we get a palindrome (344213444312443).

The spelling of 212211222200231 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twenty-two million, two hundred thousand, two hundred thirty-one".

Divisors: 1 19 574307 10911833 19447807 369508333 11169011694749 212211222200231