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222131221212229 = 7211182740538423
BaseRepresentation
bin110010100000011011110100…
…100010001010110001000101
31002010111112111201210200001121
4302200123310202022301011
5213103344220112242404
62104233401350353541
764534310510625400
oct6240336442126105
91063445451720047
10222131221212229
116486135a4750aa
1220ab662865b8b1
1396c3b659bc094
143cbd2cc08cd37
151aa3222091e54
hexca06f488ac45

222131221212229 has 12 divisors (see below), whose sum is σ = 258399860107104. Its totient is φ = 190396482300024.

The previous prime is 222131221212227. The next prime is 222131221212281. The reversal of 222131221212229 is 922212122131222.

It is a happy number.

It is not a de Polignac number, because 222131221212229 - 21 = 222131221212227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222131221212194 and 222131221212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222131221212227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14789689 + ... + 25748734.

It is an arithmetic number, because the mean of its divisors is an integer number (21533321675592).

Almost surely, 2222131221212229 is an apocalyptic number.

It is an amenable number.

222131221212229 is a deficient number, since it is larger than the sum of its proper divisors (36268638894875).

222131221212229 is a wasteful number, since it uses less digits than its factorization.

222131221212229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40650264 (or 40650257 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The spelling of 222131221212229 in words is "two hundred twenty-two trillion, one hundred thirty-one billion, two hundred twenty-one million, two hundred twelve thousand, two hundred twenty-nine".

Divisors: 1 7 49 111827 782789 5479523 40538423 283768961 1986382727 4533290228821 31733031601747 222131221212229