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222120322310231 = 4727911693287103
BaseRepresentation
bin110010100000010001101010…
…111010001010000001010111
31002010110111101011121002012122
4302200101222322022001113
5213103204410002411411
62104224400053210155
764533443436530042
oct6240215272120127
91063414334532178
10222120322310231
1164857777308784
1220ab44a663095b
1396c2b19a00c47
143cbc9767b7c59
151aa2cd53229db
hexca046ae8a057

222120322310231 has 8 divisors (see below), whose sum is σ = 226927564529664. Its totient is φ = 217316466670680.

The previous prime is 222120322310213. The next prime is 222120322310233. The reversal of 222120322310231 is 132013223021222.

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 222120322310231 - 26 = 222120322310167 is a prime.

It is a super-2 number, since 2×2221203223102312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222120322310231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120322310233) 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, 846512375 + ... + 846774728.

It is an arithmetic number, because the mean of its divisors is an integer number (28365945566208).

Almost surely, 2222120322310231 is an apocalyptic number.

222120322310231 is a deficient number, since it is larger than the sum of its proper divisors (4807242219433).

222120322310231 is a wasteful number, since it uses less digits than its factorization.

222120322310231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693289941.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 222120322310231 its reverse (132013223021222), we get a palindrome (354133545331453).

The spelling of 222120322310231 in words is "two hundred twenty-two trillion, one hundred twenty billion, three hundred twenty-two million, three hundred ten thousand, two hundred thirty-one".

Divisors: 1 47 2791 131177 1693287103 79584493841 4725964304473 222120322310231