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12210310221311 = 31393880974881
BaseRepresentation
bin1011000110101110111100…
…1101000000110111111111
31121020021221111212022001102
42301223233031000313333
53100023203404040221
641545201124003315
72400110604261536
oct261535715006777
947207844768042
1012210310221311
1139883aa885964
12145253423053b
136a7572a65517
14302da70d731d
151629415d030b
hexb1aef340dff

12210310221311 has 4 divisors (see below), whose sum is σ = 12604191196224. Its totient is φ = 11816429246400.

The previous prime is 12210310221287. The next prime is 12210310221457. The reversal of 12210310221311 is 11312201301221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12210310221311 - 210 = 12210310220287 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 (12210310221911) 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, 196940487410 + ... + 196940487471.

It is an arithmetic number, because the mean of its divisors is an integer number (3151047799056).

Almost surely, 212210310221311 is an apocalyptic number.

12210310221311 is a deficient number, since it is larger than the sum of its proper divisors (393880974913).

12210310221311 is an equidigital number, since it uses as much as digits as its factorization.

12210310221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393880974912.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12210310221311 its reverse (11312201301221), we get a palindrome (23522511522532).

The spelling of 12210310221311 in words is "twelve trillion, two hundred ten billion, three hundred ten million, two hundred twenty-one thousand, three hundred eleven".

Divisors: 1 31 393880974881 12210310221311