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222130031311 = 317165484881
BaseRepresentation
bin1100111011011111111…
…0110100101011001111
3210020100121211202101201
43032313332310223033
512114410242000221
6250013425250331
722022406053506
oct3166776645317
9706317752351
10222130031311
1186228680281
1237072a939a7
1317c4009ac66
14aa7322d83d
155ba11da891
hex33b7fb4acf

222130031311 has 4 divisors (see below), whose sum is σ = 229295516224. Its totient is φ = 214964546400.

The previous prime is 222130031309. The next prime is 222130031353. The reversal of 222130031311 is 113130031222.

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 222130031311 - 21 = 222130031309 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 (222130031611) 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, 3582742410 + ... + 3582742471.

It is an arithmetic number, because the mean of its divisors is an integer number (57323879056).

Almost surely, 2222130031311 is an apocalyptic number.

222130031311 is a deficient number, since it is larger than the sum of its proper divisors (7165484913).

222130031311 is an equidigital number, since it uses as much as digits as its factorization.

222130031311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7165484912.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 222130031311 its reverse (113130031222), we get a palindrome (335260062533).

The spelling of 222130031311 in words is "two hundred twenty-two billion, one hundred thirty million, thirty-one thousand, three hundred eleven".

Divisors: 1 31 7165484881 222130031311